A cat gets very little (4)

I believe the answer is:

atom

I'm a little stuck... Click here to teach me more about this clue!

'very little' is the definition.
'atom' can be an answer for 'little' (thesaurus). I'm unsure of the 'very' bit.

'a cat' is the wordplay.
'cat' becomes 'tom' (a tom is a male cat).
'a'+'tom'='ATOM'

'gets' acts as a link.

Can you help me to learn more?

(Other definitions for atom that I've seen before include "The tiniest particle" , "Basic unit of a chemical element" , "Bit of make-up" , "A tiny particle but a big bomb" , "Elementary particle" .)

I've seen this clue in the Evening Standard.

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