Stir erratically after finding returned Greek letter outside with the entertainer (7)
I believe the answer is:
artiste
'the entertainer' is the definition.
(artiste is a kind of entertainer)
'stir erratically after finding returned greek letter outside' is the wordplay.
I cannot quite see how this works, but
an anagram of 'stir' is 'rtis' which is present in the answer.
'letter' could be 't' and 't' is present in the answer.
The remaining letters 'ae' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'with' is the link.
Can you help me to learn more?
(Other definitions for artiste that I've seen before include "Attires for professional entertainer" , "Tears it (anag.)" , "Attires (anag.)" , "Theatre performer" , "nightclub entertainer?" .)