Crown represented in a coat of arms? (5)
I believe the answer is:
crest
This could be a double definition.
'crown represented in' is the first definition.
'crest' can be an answer for 'crown' (thesaurus). I am not sure about the 'represented in' bit.
'a coat of arms?' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for crest that I've seen before include "Top point of hill or wave" , "Summit - emblem - cockscomb" , "Top (of wave etc)" , "Peak - comb" , "Heraldic device representing a family" .)