Rubbish an isle regularly cut up for fertiliser (10)
I believe the answer is:
pollinator
'fertiliser' is the definition.
(I've seen this before)
'rubbish an isle regularly cut up for' is the wordplay.
I cannot really understand how this works, but
'an' could be 'i' (Roman numeral for one) and 'i' is located in the answer.
'cut' could be 'poll' (I've seen this before) and 'poll' is found within the answer.
'for' could be 'to' (eg both can mean 'in the opinion of') and 'to' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pollinator that I've seen before include "WASP, say" , "fertiliser" , "busy bee?" .)