Conspicuous girl disheartened receiving a call (7)
I believe the answer is:
glaring
'conspicuous' is the definition.
(thesaurus)
'girl disheartened receiving a call' is the wordplay.
'girl' becomes 'g'.
'disheartened receiving' becomes 'la' (I can't explain this - if you can you should give a lot more credence to this answer).
'a call' becomes 'ring' (telephone call).
'g'+'la'+'ring'='GLARING'
Can you help me to learn more?
(Other definitions for glaring that I've seen before include "Blatant" , "Dazzlingly bright" , "Angrily staring" , "Looking daggers; obvious (error)" , "Dazzling" .)