Women's boat crew taking up another sport (13)
I believe the answer is:
weightlifting
'sport' is the definition.
(I know that weightlifting is a Olympic sport)
'women's boat crew taking up' is the wordplay.
'women' becomes 'w' (standard abbreviation).
'boat crew' becomes 'eight' (I've seen this before).
'taking up' becomes 'lifting' (lifting up).
'w'+'eight'+'lifting'='WEIGHTLIFTING'
'another' acts as a link.
This may not be right. It may be part of another bit of the clue.
(Other definitions for weightlifting that I've seen before include "Strongly-contested event" , "Olympic event" .)