The Welsh youngster is helping the Huish Park outfit's bid to beat the drop to League One and has emerged as an influential figure for Gary Johnson's side, scoring his first goal in the recent win at Blackpool and again in Monday's agonising defeat to Huddersfield Town.
After initially enjoying success at Carlisle United this term, the 20-year-old has made the step up in fine fashion and is continuing to progress as he accumulates valuable experience.
"Tom has been a massive success," United Reserves coach Joyce told ManUtd.com. "He started pre-season exceptionally well but there were players who needed to be assessed from above who were older than him.
"So he found opportunities difficult in the early part of the campaign despite probably being one of the best, if not the best, player in pre-season. Yet he kept his head up in training, even if I felt he didn't do as well as he had done before when coming on as a substitute.
"His training was really good, though, so we thought we'd get him out on loan to allow him an opportunity to profile himself. He did very well at Carlisle, scoring some outstanding goals and showing a good work rate. It has been another step up again at Yeovil and they've been delighted with him.
"Following the bit of exposure, he nearly made the full Wales squad and was possibly the best player for the Under-21s instead in their last game. He's had two really successful loan spells and has matured a lot over the course of the season.