Dance arranged at school with zero publicity (5)
I believe the answer is:
promo
'publicity' is the definition.
(short for promotion)
'dance arranged at school with zero' is the wordplay.
I cannot quite understand how this works, but
'dance' could be 'prom' (prom is a kind of dance) and 'prom' is found in the answer.
'zero' could be 'o' (O resembles 0) and 'o' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for promo that I've seen before include "Brief publicity" , "publicity event" , "Ad" , "advertisement" , "Advertising film/video" .)