Student butts in to denounce programme (4)
I believe the answer is:
plan
'programme' is the definition.
(I know that programme can be written as plan)
'student butts in to denounce' is the wordplay.
I cannot really understand how this works, but
'student' could be 'l' (as in L-plates for learner drivers) and 'l' is present in the answer.
The remaining letters 'pan' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for plan that I've seen before include "Blueprint" , "Arrangement" , "Map; intention" , "'Scheme, strategy (4)'" , "Design; map" .)