Bats on regardless, ultimately inconsistent (6)
I believe the answer is:
spotty
'inconsistent' is the definition.
(similar in meaning)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for spotty that I've seen before include "Adolescent boys are often so" , "Teenagers are often so" , "Pimply or covered with dots" , "Maculate (like a leopard?)" , "Covered in rash" .)