He occupies land next to the bank (8)
I believe the answer is:
riparian
'next to the bank' is the definition.
I can't judge whether this defines the answer.
'he occupies land' is the wordplay.
'he' becomes 'Rip'.
'occupies land' becomes 'arian' (I can't explain this - if you can you should believe this answer much more).
'rip'+'arian'='RIPARIAN'
Can you help me to learn more?
(Other definitions for riparian that I've seen before include "Relating to river banks" , "Relating to a riverbank - Iran pair (anag)" , "Relating to a river bank" , "associated with banks" , "along river bank" .)