Deviant setter gets no credit, strangely (8)
I believe the answer is:
indirect
'deviant' is the definition.
(thesaurus)
'setter gets no credit strangely' is the wordplay.
'setter' becomes 'I' (the person that set the crossword).
'gets' is a charade indicator (letters next to each other).
'no' becomes 'n' (common abbreviation).
'strangely' indicates an anagram.
'credit' anagrammed gives 'direct'.
'i'+'n'+'direct'='INDIRECT'
(Other definitions for indirect that I've seen before include "Not straighforward" , "In credit (anag.)" , "Neither straight or straightforward" , "Roundabout, circuitous" , "Circumlocutory" .)