Suspect in stolen lippy (8)
I believe the answer is:
insolent
'lippy' is the definition.
(I've seen this before)
'suspect in stolen' is the wordplay.
'suspect' is an anagram indicator.
'in'+'stolen'='instolen'
'instolen' is an anagram of 'INSOLENT'.
(Other definitions for insolent that I've seen before include "Being discourteous and insulting" , "Impudent and disrespectful" , "Cheeky" , "Rude and disrespectful" , "Brash" .)