Too sentimental during a wet week (4)

I believe the answer is:

twee

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'too sentimental' is the definition.
'twee' can be an answer for 'sentimental' (I've seen this before). I'm not certain of the 'too' bit.

'during a wet week' is the wordplay.
'during' indicates the answer is hidden within the clue.
'TWEE' is hidden in the letters of 'wet week'.

Can you help me to learn more?

(Other definitions for twee that I've seen before include "Precious - sentimental" , "Rather too pretty" , "Sickly sweet" , "Excessively sentimental" , "rather quaint" .)

I've seen this clue in the Evening Standard.

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