Look intently round last of winter feed (5)
I believe the answer is:
graze
'feed' is the definition.
(I know that feed is a is a more specific form of the action of graze)
'look intently round last of winter' is the wordplay.
'look intently' becomes 'gaze' (I've seen this in another clue).
'round' indicates putting letters inside.
'last of' suggests the final letters.
The final letter of 'winter' is 'r'.
'gaze' placed around 'r' is 'GRAZE'.
(Other definitions for graze that I've seen before include "Eat grass in a field" , "Feed in a pasture" , "Feed casually" , "To eat constantly" , "Eat lightly and often" .)