Appear keen to serve venison one day? (4)
I believe the answer is:
fawn
'appear' is the definition.
The definition and answer can be both related to bodily activities as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for fawn that I've seen before include "crawl" , "Light brown colour" , "Bear does, maybe" , "Flatter, be obsequious like young deer" , "Behave obsequiously like young deer" .)