Follow match in clothing worn for exercise (9)
I believe the answer is:
tracksuit
'clothing worn for exercise' is the definition.
I can't judge whether this defines the answer.
'follow match' is the wordplay.
'follow' becomes 'track' (I've seen this before).
'match' becomes 'suit' (suiting is a kind of matching).
'track'+'suit'='TRACKSUIT'
'in' is the link.
Can you help me to learn more?
(Other definitions for tracksuit that I've seen before include "athletic gear" , "Sportswear" , "it's assumed, if exercising" , "Warm loose-fitting garment for exercising" , "Loose-fitting top and bottom for athlete warming up" .)