Clever swimmer left Greek character in Wear (7)
I believe the answer is:
dolphin
'clever swimmer' is the definition.
(dolphins are highly intelligent)
'left greek character in wear' is the wordplay.
'left greek' becomes 'dolph' (I am not sure about this - if you are sure you should believe this answer much more).
'character in' indicates the central letters (I've seen 'characters in' mean this).
'wear' becomes 'mink' (mink is a kind of wear).
The centre of 'mink' is 'in'.
'dolph'+'in'='DOLPHIN'
Can you help me to learn more?
(Other definitions for dolphin that I've seen before include "Marine mammal with an elongated beak-like head" , "Sea mammal like large porpoise, friendly towards people" , "Small sociable whale" , "Sociable sea mammal, sacred in ancient Greece" , "Sea-mammal" .)