Untouched, it can't degenerate (6)
I believe the answer is:
intact
'untouched' is the definition.
(I've seen this before)
'it can't degenerate' is the wordplay.
'degenerate' indicates anagramming the letters.
'it'+'cant'='itcant'
'itcant' is an anagram of 'INTACT'.
(Other definitions for intact that I've seen before include "Inviolate" , "without flaw?" , "Whole and complete" , "Unbroken - sound" , "Flawless" .)