Master invited graduate and two lecturers to dance (6,4)
I believe the answer is:
masked ball
'dance' is the definition.
(masked ball is a kind of dance)
'master invited graduate and two lecturers' is the wordplay.
'master' becomes 'm'.
'invited' becomes 'asked' (I've seen this before).
'graduate' becomes 'ba'.
'and' says to put letters next to each other.
'two lecturers' becomes 'll' (I can't justify this - if you can you should give a lot more credence to this answer).
'm'+'asked'+'ba'+'ll'='MASKED BALL'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for masked ball that I've seen before include "social event" , "special sort of party" .)