Sad brown cape changed for fawn (3,3,6)
I believe the answer is:
bow and scrape
'fawn' is the definition.
(both can mean to act obsequiously)
'sad brown cape changed' is the wordplay.
'changed' indicates an anagram.
'sad'+'brown'+'cape'='sadbrowncape'
'sadbrowncape' with letters rearranged gives 'BOW AND SCRAPE'.
'for' is the link.
(Other definitions for bow and scrape that I've seen before include "Behave obsequiously" , "Be obsequious" , "Show humility" , "Two ways to fiddle" , "show subservience" .)