They sit for qualifications (6)

I believe the answer is:

riders

I believe this is a double definition.

'they sit' is the first definition.
(I've seen this before)

'for qualifications' is the second definition.
(I've seen this before)

(Other definitions for riders that I've seen before include "Travellers on horseback or bicycle" , "Equestrians" , "Jockeys" , "qualifications" , "Horse travellers" .)

I've seen this clue in The Globe and Mail and The Guardian.

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