A badge to resemble medals partly (6)
I believe the answer is:
emblem
'a badge' is the definition.
(I've seen this before)
'resemble medals partly' is the wordplay.
'partly' indicates the answer is hidden within the clue (part of the clue is used).
'EMBLEM' can be found hidden inside 'resemble medals'.
'to' acts as a link.
(Other definitions for emblem that I've seen before include "Representative object" , "Badge, token" , "Symbol, device that represents something" , "Logo" , "Symbolic representation on badge etc" .)