They provide courses for those employed by The Party (8)
I believe the answer is:
caterers
'they' is the definition.
Both the definition and answer are plural nouns.
Perhaps they are linked in a way I don't understand?
'provide courses for those employed by the party' is the wordplay.
I cannot quite understand how this works, but
'provide' could be 'cater' (synonyms) and 'cater' is present in the answer.
The remaining letters 'ers' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for caterers that I've seen before include "food suppliers" , "They supply and serve food" , "Party food providers" , "They supply food for events" , "They provide courses!" .)