I learn a cat bit indiscriminately, perhaps killing thrush (13)

I believe the answer is:

antibacterial

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'killing thrush' is the definition.
The definition suggests an adjective which matches the answer.

'i learn a cat bit indiscriminately' is the wordplay.
'indiscriminately' indicates anagramming the letters (I've seen this in other clues).
'i'+'learn'+'a'+'cat'+'bit'='ilearnacatbit'
'ilearnacatbit' with letters rearranged gives 'ANTIBACTERIAL'.

'perhaps' acts as a link.

Can you help me to learn more?

(Another definition for antibacterial that I've seen is " averting complaint".)

I've seen this clue in The Times.

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