Headgear in unusual shade of peach and gold (7)
I believe the answer is:
chapeau
'headgear in unusual shade' is the definition.
'chapeau' can be an answer for 'headgear' (chapeau is a kind of headgear). I am not sure about the 'in unusual shade' bit.
'of peach and gold' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'and' says to put letters next to each other.
'gold' becomes 'Au' (Au is the chemical symbol for gold).
'peach' is an anagram of 'chape'.
'chape'+'au'='CHAPEAU'
Can you help me to learn more?
(Other definitions for chapeau that I've seen before include "Fashionable hat" , "something to put on noodles" , "(French) hat" , "Cap (French or heraldic?)" .)