Deal with as a special favour? (5)
I believe the answer is:
treat
'deal with' is the definition.
(synonyms)
'a special favour?' is the wordplay.
I cannot really understand how this works, but
'a' is found in the answer.
The remaining letters 'tret' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'as' is the link.
Can you help me to learn more?
(Other definitions for treat that I've seen before include "pay for another" , "Deal with - delightful surprise" , "Attend to; surprise gift" , "Deal with - source of great pleasure" , "Enjoyable surprise gift" .)