Jockey on contract? (5)
I believe the answer is:
rider
'jockey on contract?' is the definition.
'rider' can be an answer for 'jockey' (horse rider). I am not certain of the 'on contract?' bit.
'jockey on contract?' is the wordplay.
'jockey' becomes 'ride' (I've seen this in another clue).
'on' becomes 're' ('on' can be mean 'with reference to').
'contract?' means to remove the last letter (contract can mean to shorten).
're' with its last letter taken off is 'r'.
'ride'+'r'='RIDER'
Can you help me to learn more?
(Other definitions for rider that I've seen before include "Clause appended to a legislative bill" , "Jury's recommendation" , "Revere, for example" , "Horseman or supplementary jury verdict" , "Horseman or add-on verdict by jury" .)