Game in which four will make a score? (5)
I believe the answer is:
fives
'game' is the definition.
(fives is a kind of game)
'four will make a score?' is the wordplay.
I cannot quite understand how this works, but
'four' could be 'iv' (Roman numerals) and 'iv' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'in which' acts as a link.
Can you help me to learn more?
(Other definitions for fives that I've seen before include "Squash relative" , "bunch capable of causing injury?" , "horse disease as before" , "Ball game" , "Game similar to squash" .)