Like one who supplies bowlers and bats? (3,2,1,6)
I believe the answer is:
mad as a hatter
'like one who supplies bowlers' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'bats?' is the wordplay.
I cannot really understand how this works, but
'bats?' could be 'mad' (bats can informally mean mad) and 'mad' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for mad as a hatter that I've seen before include "Completely foolish" , "Crazy" , "Completely insane (informal)" , "Totally daft" , "Sun-orbiting body" .)