Jumper showing signs of exertion? (7)
I believe the answer is:
sweater
'jumper' is the definition.
(both can mean an item of clothing)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for sweater that I've seen before include "mugger once" , "One visibly too hot" , "Jumper (7)" , "Long-sleeved pullover" , "Heavy jersey" .)
