During some winters, everybody gets more grown-up (6)

I believe the answer is:

taller

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'during' is the definition.
I can't judge whether this defines the answer.

'some winters everybody gets more grown-up' is the wordplay.
'some' means to look at the middle letters.
'everybody' becomes 'all' (all people).
'gets' says to put letters next to each other.
'more grown up' becomes 'er' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The central letter of 'winters' is 't'.
't'+'all'+'er'='TALLER'

Can you help me to learn more?

(Other definitions for taller that I've seen before include "Greater in stature" , "Higher in stature" .)

I've seen this clue in the Evening Standard.

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