No runs came when the girl fell (6,4)
I believe the answer is:
maiden over
'no' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'runs came when the girl fell' is the wordplay.
I cannot really see how this works, but
'runs' could be 'r' (cricket abbreviation) and 'r' is found in the answer.
'when' could be 'e' (I've seen this in other clues) and 'e' is found in the answer.
'girl' could be 'maid' (I've seen this in other clues) and 'maid' is present in the answer.
The remaining letters 'nove' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for maiden over that I've seen before include "activity on field at no cost" , "Six balls with no runs" , "tight spell of bowling" .)