Naming little bird and fish (7)

I believe the answer is:

titling

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'naming' is the definition.
(titling is a kind of naming)

'little bird and fish' is the wordplay.
'little bird' becomes 'tit' (tit is a kind of bird. I am not sure about the 'little' bit.).
'and' means one lot of letters go next to another.
'fish' becomes 'ling' (ling is a kind of fish).
'tit'+'ling'='TITLING'

Can you help me to learn more?

(Other definitions for titling that I've seen before include "Giving name to" , "Calling" , "Identifying" .)

I've seen this clue in the Sydney Morning Herald.

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