The last job one aims for on a racecourse (9,4)
I believe the answer is:
finishing post
'the' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'last job one aims for on a racecourse' is the wordplay.
I cannot really see how this works, but
'last' could be 'finish' (synonyms) and 'finish' is found within the answer.
'job' could be 'post' (post is a kind of job) and 'post' is found within the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for finishing post that I've seen is " photos here!".)