Fragile copy (6)
I believe the answer is:
flimsy
I believe this clue is a double definition.
'fragile' is the first definition.
(I know that fragile can be written as flimsy)
'copy' is the second definition.
(thesaurus)
(Other definitions for flimsy that I've seen before include "Weak, insubstantial" , "Fragile, of loose structure" , "Lacking strength and solidity" , "Lightweight" , "Not strong" .)