Maybe gents with ball back in sports ground (4)
I believe the answer is:
oval
'sports ground' is the definition.
(I've seen this before)
'maybe gents with ball back' is the wordplay.
'maybe gents' becomes 'ova' (I am not sure about this - if you are sure you should believe this answer much more).
'with' means one lot of letters go next to another.
'back' says to take the final letters (the letter at the back).
The final letter of 'ball' is 'l'.
'ova'+'l'='OVAL'
'in' is the link.
Can you help me to learn more?
(Other definitions for oval that I've seen before include "Shape of 25" , "Egg shape - Kennington test match venue" , "Cricket ground - presidential office" , "Ellipsoidal" , "Where England regained the Ashes" .)