Pin-up both rather embarrassed
I believe the answer is:
heart-throb
'pin-up' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'both rather embarrassed' is the wordplay.
'both rather' can be anagrammed to 'HEART-THROB'.
Though, I'm not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for heart-throb that I've seen before include "Desired male" , "Excitingly good-looking man" , "Male object of infatuation" , "One inciting romantic feelings" , "Subject of infatuation" .)