Where one might find ham tasty, regularly -- in that place (7)
I believe the answer is:
theatre
'where one might find ham' is the definition.
(I know that ham actors work in theatres)
'tasty regularly in that place' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'in' is an insertion indicator.
'that place' becomes 'there' (as opposed to 'here' meaning this place).
The alternating letters of 'tasty' are 'at'.
'at' placed into 'there' is 'THEATRE'.
(Other definitions for theatre that I've seen before include "A tether (anag.)" , "Entertainment venue" , "Playhouse - operations room" , "Play scene" , "Venue for plays, films and surgery" .)