Upsets in sport, with right wingers in unfamiliar battles (8)
I believe the answer is:
perturbs
'upsets' is the definition.
(perturbing is a kind of upseting)
'sport with right wingers in unfamiliar battles' is the wordplay.
I cannot quite see how this works, but
'sport' could be 'pe' (short for Physical Education) and 'pe' is found in the answer.
'right' could be 'rt' (abbreviation as in Rt Hon- the Right Honourable) and 'rt' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Other definitions for perturbs that I've seen before include "Makes anxious and uneasy" , "Disquiets, troubles" , "is upsetting" .)