Turkey and plenty of squash (7)
I believe the answer is:
trample
'squash' is the definition.
(thesaurus)
'turkey and plenty' is the wordplay.
'turkey' becomes 'tr' (I've seen this in other clues).
'and' says to put letters next to each other.
'plenty' becomes 'ample' (I've seen this before).
'tr'+'ample'='TRAMPLE'
'of' acts as a link.
(Other definitions for trample that I've seen before include "Walk heavily or roughly" , "Insult" , "Encroach with violence" , "Flatten" , "Crush with the feet" .)