Take tiny bites (6)
I believe the answer is:
nibble
'take tiny bites' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for nibble that I've seen before include "Bite gently and eat a little at a time" , "Bite off very small pieces" , "Take tiny bites" , "express tentative interest" , "Snack" .)