Gold coin and compass (5)
I believe the answer is:
orbit
'compass' is the definition.
(synonyms)
'gold coin' is the wordplay.
'gold' becomes 'or' ('or' is the heraldic name for gold).
'coin' becomes 'bit' (I've seen this before).
'or'+'bit'='ORBIT'
'and' is the link.
(Other definitions for orbit that I've seen before include "Satellite's path" , "Field of influence" , "Path of a planet or satellite" , "Sort of circuit" , "heavenly passage" .)