Being saucy, I am put outside room (8)
I believe the answer is:
impudent
'being saucy' is the definition.
(synonyms)
'i am put outside room' is the wordplay.
'i am' becomes 'I'm' (contraction).
'outside' means one lot of letters goes inside another.
'room' becomes 'den' (den is a kind of room).
'put' enclosing 'den' is 'pudent'.
'im'+'pudent'='IMPUDENT'
(Other definitions for impudent that I've seen before include "impolite" , "Rude" , "Audacious" , "Saucy" , "Cheeky, disrespectful" .)