Tuck into entrees and tasty starters (3)
I believe the answer is:
eat
'tuck into' is the definition.
(I've seen this in another clue)
'entrees and tasty starters' is the wordplay.
'starters' indicates taking the first letters (the letters which start the words).
The initial letters of 'entrees and tasty' is 'EAT'.
(Other definitions for eat that I've seen before include "Use a knife and fork" , "Munch" , "Have 23d [MEAL]" , "to do etching?" , "Break bread" .)