Dodgy (7)
'dodgy' is the definition.
(I know that dodgy can be written as suspect)
This is all the clue.
(Other definitions for suspect that I've seen before include "one on bail, perhaps" , "Doubt innocence of" , "Doubt truth of" , "Consider or believe likely" , "Be ready to believe - one of the usual crowd?" .)
(Other definitions for dubious that I've seen before include "Arousing suspicion" , "Doubtful, uncertain" , "unreliable" , "Of questionable value" , "Ambiguous or suspect" .)
'dodgy' is the definition.
(both can mean dubious)
This is all the clue.
(Other definitions for iffy that I've seen before include "Questionable (inf)" , "Doubtful (colloq.)" , "not kosher" , "Unsure" , "Doubtful, not definite" .)
(Other definitions for sus that I've seen before include "Believe guilty (sl.)" , "Something police" , "Find out" , "One interesting the police" , "Suspicion (slang)" .)
(Other definitions for spurious that I've seen before include "Faked" , "Forged" , "Inauthentic" , "deceitful!" , "False, fake" .)