Sportsperson, judge, and ref caught in rain (10)
I believe the answer is:
showjumper
'sportsperson' is the definition.
(I've seen this before)
'judge and ref caught in rain' is the wordplay.
'judge' becomes 'J' (abbreviation for judge).
'and' is a charade indicator (letters next to each other).
'ref' becomes 'ump' (I've seen this in another clue).
'caught' is an insertion indicator.
'in rain' becomes 'shower' (showering is a kind of raining. I am not sure about the 'in' bit.).
'j'+'ump'='jump'
'jump' inserted into 'shower' is 'SHOWJUMPER'.
Can you help me to learn more?
(Other definitions for showjumper that I've seen before include "horse" , "equestrian" , "performer in event" , "one using mount?" , "Sportsperson penalised for a refusal" .)