Copy ear-clip design (7)
I believe the answer is:
replica
'copy' is the definition.
(I know that replica is a type of copy)
'ear-clip design' is the wordplay.
'design' indicates an anagram.
'ear'+'clip'='earclip'
'earclip' anagrammed gives 'REPLICA'.
(Other definitions for replica that I've seen before include "knock-off" , "Exact copy as of sport trophy" , "Reproduction, exact copy" , "Duplicate" , "Caliper (anag)" .)