Flag shows unusual gold parrot (3,5)
I believe the answer is:
old glory
'flag' is the definition.
(I've seen this before)
'unusual gold parrot' is the wordplay.
'unusual' indicates an anagram.
'parrot' becomes 'lory' (small parrot).
'gold' is an anagram of 'oldg'.
'oldg'+'lory'='OLD GLORY'
'shows' is the link.
(Other definitions for old glory that I've seen before include "The star-spangled banner" , "Name for the US national flag" , "Nickname for the flag of the United States" , "National flag of the United States" , "standard" .)