The twit dropped it? Rot! Absolute nonsense! (7)

I believe the answer is:

twaddle

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'absolute nonsense' is the definition.
'twaddle' can be an answer for 'nonsense' (informal term for nonsense or rubbish). I'm not sure about the 'absolute' bit.

'the twit dropped it? rot' is the wordplay.
'dropped' suggests deleting specific letters.
'rot' becomes 'addle' (I've seen this before).
'twit' with 'it' taken away is 'tw'.
'tw'+'addle'='TWADDLE'

Can you help me to learn more?

(Other definitions for twaddle that I've seen before include "Bull" , "Moonshine" , "Foolish speech" , "Foolish words" , "Hot air" .)

I've seen this clue in the Evening Standard.

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