Choose course of graduate lectures (5)
I believe the answer is:
elect
'choose course' is the definition.
'elect' can be an answer for 'choose' (electing is a kind of choosing). I'm not sure about the 'course' bit.
'of graduate lectures' is the wordplay.
'of' says the answer is hidden in the clue.
'ELECT' can be found hidden inside 'graduate lectures'.
Can you help me to learn more?
(Other definitions for elect that I've seen before include "Put in power by voting" , "special people" , "Appoint through ballot" , "Vote to put into power" , "Exclusive group" .)