Cyclist's condition (5)

I believe the answer is:

rider

I believe this is a double definition.

'cyclist's' is the first definition.
(someone riding a bike)

'condition' is the second definition.
(condition or specification added to a contract)

(Other definitions for rider that I've seen before include "Clause added to a legal document" , "Equestrian or biker?" , "one making journey" , "Revere, for example" , "Supplementary clause" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app