Clenton, the state's leading apprentice with 89 winners this season, is set to finish a 10-day suspension for careless riding at Taree on May 12 this Saturday.

However, Clenton already missed meetings because of her back problems before the suspension and she is no nearer to a return date.

She last rode on May 15 at the Scone Cup meeting, where she won aboard exciting prospect The Bopper in the Inglis 2YO Challenge.

Clenton, though, aggravated a back problem at the meeting and she has been battling since to find relief.

She returned to race riding early last year after more than two years out following a major fall at Scone in October 2016 in which she fractured six vertebrae. Clenton still has metal rods and plates in her upper back from surgery after the accident but up until now in her riding return she has easily managed pain in the region.

Clenton was hoping to ride 100 winners in a season for the first time but she had no idea when she would be back to continue her push.

"It's flared up here and there but it flared up again at Scone and it just hasn't settled down," Clenton said.

"I went to the doctor today and he said 'just give it time', but I don't know if I should get a second opinion or what.

"Where the plates are, it's always ached, but the lower back is aching as well and they are both very ordinary.

"I don't know when I'm going to ride again at the moment unfortunately.

"I'm doing physio twice a week and I'm on pain relief, but it's just up in the air at the moment."

AAP reports: Racing Victoria says it has two options it is exploring for the programming of Melbourne's spring carnival races.

The Melbourne Racing Club has told RV it wants to transfer the Caulfield Cup from mid-October date to the end of November. Such a move would result in a dramatic overhaul of the spring carnival.

Another option for RV is to leave the program as it is but this would lead to a clash with the AFL finals series in October.

RV chief executive Giles Thompson said discussions would continue with key stakeholders. He expects to have some clarity on what the spring may look like by early June.

But the Victoria Racing Club remained steadfast in their decision not to shift the date of the Melbourne Cup from the first Tuesday in November.

RV is also working towards allowing racehorse owners and some club members back on course in July.

Thompson said June 22 was a key date as the Victorian state government announces any changes on further relaxing COVID-19 restrictions.

Racing NSW has also expressed an intention to have crowds back on-course from July 1. Thompson said that was not in any way influencing RV's ambition to see crowds return.