Leave a league after lower score at rugby (4,4)
I believe the answer is:
drop goal
'score at rugby' is the definition.
'drop goal' can be an answer for 'score' (I've seen this before). I'm not sure about the 'at rugby' bit.
'leave a league after lower' is the wordplay.
I cannot quite understand how this works, but
'leave' could be 'go' (to go is to depart or leave) and 'go' is located in the answer.
'a' is found in the answer.
'league' could be 'l' (abbreviation) and 'l' is located in the answer.
'lower' could be 'drop' (I've seen this before) and 'drop' is present in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for drop goal that I've seen before include "one scores with over the bar" , "score points?" , "One way of scoring at rugby" .)