A morsel of rabbit (3)

I believe the answer is:

bit

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

'a morsel' is the definition.
(synonyms)

'rabbit' is the wordplay.
'BIT' is hidden within the letters.
But, I am uncertain how the hidden word is indicated.

'of' is the link.

Can you help me to learn more?

(Other definitions for bit that I've seen before include "Small piece; boring tool" , "Data measurement unit" , "gripped" , "Small fragment" , "Morsel" .)

I've seen this clue in the Evening Standard.

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