Thought about Hattie's exterior, with a proudly displayed bust (10)
I believe the answer is:
figurehead
'bust' is the definition.
(I've seen this before)
'thought about hattie's exterior with a proudly displayed' is the wordplay.
I cannot quite understand how this works, but
'about' could be 're' ('re' means regarding or about) and 're' is found in the answer.
'a' is within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for figurehead that I've seen before include "may be bust" , "Nominal leader without much power" , "Leader that's powerless" , "carved decoration" , "Front man" .)