Metallic cloth (4)
I believe the answer is:
lame
'metallic cloth' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lame that I've seen before include "Fabric interwoven with metal threads" , "Having impaired walking ability" , "Rubbish" , "Imperfect - material" , "Unable to walk without difficulty" .)