Hang around to rile, perhaps (6)
I believe the answer is:
loiter
'hang around' is the definition.
(I know that hang around can be written as loiter)
'to rile perhaps' is the wordplay.
'perhaps' indicates an anagram.
'to'+'rile'='torile'
'torile' is an anagram of 'LOITER'.
(Other definitions for loiter that I've seen before include "Linger, tarry" , "Hang around, perhaps with intent" , "Mooch, hang around" , "Linger - lurk" , "Wait suspiciously" .)