Clever, getting on in seaside resort (8)
I believe the answer is:
brighton
'seaside resort' is the definition.
'clever getting on' is the wordplay.
'clever' becomes 'bright' (bright can mean clever or gifted).
'getting' means one lot of letters go next to another.
'bright'+'on'='BRIGHTON'
'in' acts as a link.
(Other definitions for brighton that I've seen before include "resort town" , "East Sussex resort" , "Sussex seaside resort" , "English resort with big thorn" , "seaside location" .)