Criticised after openings of some courses cancelled (8)
I believe the answer is:
scrapped
'cancelled' is the definition.
(scrap can mean to cancel)
'criticised after openings of some courses' is the wordplay.
'criticised' becomes 'rapped' (I've seen this in another clue).
'after' is a charade indicator (letters next to each other).
'openings of' indicates taking the first letters (I've seen 'opening' mean this).
The initial letters of 'some courses' is 'sc'.
'rapped' put after 'sc' is 'SCRAPPED'.
(Other definitions for scrapped that I've seen before include "dumped" , "Put up fight" , "Cancelled; fought" , "Disposed of something useless" , "Fought - ceased to use" .)