Tidy, possible deal? (8)
I believe the answer is:
straight
I believe this is a double definition.
'tidy' is the first definition.
(thesaurus)
'possible deal?' is the second definition.
(sequence of cards in poker)
(Other definitions for straight that I've seen before include "proper place" , "Undeviating" , "square" , "in a row" , "Good poker hand" .)