Sounds like dads bite this vegetable (7)
I believe the answer is:
parsnip
'this vegetable' is the definition.
(parsnip is a type of vegetable)
'sounds like dads bite' is the wordplay.
I cannot really understand how this works, but
'bite' could be 'nip' (nipping is a kind of biting) and 'nip' is present in the answer.
The remaining letters 'pars' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for parsnip that I've seen before include "Tapering vegetable" , "Sweet root vegetable" , "Plant with edible white root" , "food" , "Yellow root vegetable" .)