One is enough to make batsmen cross! (3)
I believe the answer is:
run
'cross' is the definition.
(thesaurus)
'one is enough to make batsmen' is the wordplay.
I cannot really understand how this works, but
'one' could be 'un' (northern English dialect form of 'one') and 'un' is found within the answer.
A single letter 'r' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for run that I've seen before include "Unit of score in cricket" , "A point scored in cricket" , "Operate; flow" , "On the . . . - fleeing from pursuit" , "goal for England player?" .)