Get in trouble a bit (5)

I believe the answer is:

tinge

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

'a bit' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'get in trouble' is the wordplay.
'trouble' indicates anagramming the letters.
'get'+'in'='getin'
'getin' with letters rearranged gives 'TINGE'.

Can you help me to learn more?

(Other definitions for tinge that I've seen before include "Small quantity of (differing) colour" , "Hint; shade" , "Colour slightly; trace" , "Touch (of colour?)" , "Little bit of colour" .)

I've seen this clue in The Mirror.

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