Defoe began his professional career at Upton Park before handing in a transfer request the day after the East Enders were relegated back in 2004.
This caused uproar amongst Hammers fans who even now sing anti-Defoe songs when they meet Spurs, although Ashton believes the supporters would forgive the England man should he succeed back at the club.
Defoe recently admitted he still loved the Hammers and he regretted his transfer request and with him seemingly second choice at White Hart Lane at present and January move is possible.
“He’s certainly the type of player West Ham could do with at the moment, a player that is going to get goals,” Ashton said.
“I think the West Ham fans wouldn’t mind having Jermain back even though he divided the club when he left.
“I’m like a lot of players who have played with Jermain Defoe who will definitely say he’s up there with the best finishers we’ve ever played with.”