One catches fish round that place (8)
I believe the answer is:
gatherer
'one catches fish round that place' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'fish round that place' is the wordplay.
'fish' becomes 'gar' (I've seen this before).
'round' indicates putting letters inside.
'that place' becomes 'there' (I've seen this before).
'gar' placed around 'there' is 'GATHERER'.
Can you help me to learn more?
(Other definitions for gatherer that I've seen before include "Collector" , "One collecting eg plants for subsistence" .)