Plenty of water round here - I fish, saving nothing (4)
I believe the answer is:
isle
This clue might be a double definition.
'plenty of water' is the first definition.
The definition and answer can be both natural objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'here i fish saving nothing' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'round' is the link.
Can you help me to learn more?
(Other definitions for isle that I've seen before include "''There is an ..., a bonny ...'' (anthem of Shannon RFC)" , "description of Britain" , "Such as Man or Bute" , "one ringed in the main?" , "See 10 Down" .)