Casually try produce coated in bit of butter (4,2)
I believe the answer is:
play at
'coated in bit of butter' is the definition.
Although both the answer and definition are verbs in their base form, I cannot see how they can define each other.
'casually try' is the wordplay.
I cannot really see how this works, but
'try' could be 'play' (play is a kind of try) and 'play' is found in the answer.
The remaining letters 'at' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'produce' is the link.
Can you help me to learn more?
(Other definitions for play at that I've seen before include "Affect" , "Perform in half-hearted way as if it's a game" , "Pretend" , "Make a pretence of" .)