Gets away from rest inside, with carbon copies (7)
I believe the answer is:
escapes
'gets away from' is the definition.
(I've seen this before)
'rest inside with carbon copies' is the wordplay.
'inside' indicates the central letters.
'with' is a charade indicator (letters next to each other).
'carbon' becomes 'c' (C is the chemical symbol for carbon).
'copies' becomes 'apes' ('ape' can be a synonym of 'copy'**).
The centre of 'rest' is 'es'.
'es'+'c'+'apes'='ESCAPES'
(Other definitions for escapes that I've seen before include "Evades" , "breaks out,gets away" , "Gets free" , "Breaks out, gets away" , "Gets away from captivity" .)