Resist going with fishy food for deer (7)
I believe the answer is:
roebuck
'deer' is the definition.
(roebuck is a kind of deer)
'resist going with fishy food' is the wordplay.
I cannot really understand how this works, but
'resist' could be 'buck' (I've seen this in another clue) and 'buck' is found in the answer.
'food' could be 'roe' (roe is a kind of food) and 'roe' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'for' is the link.
Can you help me to learn more?
(Other definitions for roebuck that I've seen before include "Providing venison" , "reddish-brown jumper" , "Small male deer" , "does partner" , "Type of male deer" .)