Adolescent infatuation with a Turkish official (5)
I believe the answer is:
pasha
'turkish official' is the definition.
(I've seen this before)
'adolescent infatuation with a' is the wordplay.
'adolescent infatuation' becomes 'pash' (I am not sure about this - if you are sure you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'pash'+'a'='PASHA'
Can you help me to learn more?
(Other definitions for pasha that I've seen before include "Muslim dignitary" , "Civil or military authority in Turkey or Egypt" , "High ranking Turkish official or officer" , "High-ranking Turk" , "Former provincial governor in Egypt" .)