Install Conservative, in moving scene (8)
I believe the answer is:
ensconce
'install' is the definition.
(thesaurus)
'conservative in moving scene' is the wordplay.
'conservative' becomes 'con' (abbreviation for Conservative).
'in' is an insertion indicator.
'moving' indicates anagramming the letters.
'scene' is an anagram of 'ensce'.
'con' placed into 'ensce' is 'ENSCONCE'.
(Other definitions for ensconce that I've seen before include "Nestle" , "Settle comfortably, establish" , "Establish (oneself in a comfortable safe place)" , "Settle firmly" , "hide" .)