Content at last, turned round and did some fishing (7)
I believe the answer is:
trolled
'did some fishing' is the definition.
(I've seen this in another clue)
'content at last turned round' is the wordplay.
I cannot really understand how this works, but
'content' could be 'troll' (troll is a kind of content) and 'troll' is located in the answer.
'last' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
A single letter 'd' remains which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for trolled that I've seen before include "Made provocative comments" , "posted offensive comment" .)