Prepare on course at Cambridge after first part of tripos, say (3,2)
I believe the answer is:
tee up
'prepare on course' is the definition.
'tee up' can be an answer for 'prepare' (I've seen this before). I am not certain of the 'on course' bit.
'cambridge after first part of tripos say' is the wordplay.
'cambridge' becomes 'up' (I can't justify this - if you can you should give a lot more credence to this answer).
'after' says to put letters next to each other.
'first part of' says to take the initial letters.
'say' indicates a 'sounds like' (homophone) clue.
The initial letter of 'tripos' is 't'.
't' is a homophone of 'tee'.
'up' put after 'tee' is 'TEE UP'.
'at' acts as a link.
Can you help me to learn more?
(Another definition for tee up that I've seen is " Prepare (for a drive?)".)