Suss

5 clues
Dubious
Find out
Work out
Figure out
Figure (out), slangily
Similar answers:
Aass
Abandonsshop
Abaseabass
Abbess
Abbesses
Abcess
Abiss
Abovesuspicion
Abovethesurface
Aboynamedsue
Aboynapalmedsue
Abrassband
Abscess
Abscesses
Abscissa
Abscissae
Abscissas
Abscss
Absentmindedconfessor
Absolutebliss