Take up training with much fuss (5)

I believe the answer is:

adopt

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'take up' is the definition.
(synonyms)

'training with much fuss' is the wordplay.
'training' becomes 'PT' (abbreviation for physical training).
'with' says to put letters next to each other.
'much fuss' becomes 'ado' (synonyms. I am not sure about the 'much' bit.).
'pt' put after 'ado' is 'ADOPT'.

Can you help me to learn more?

(Other definitions for adopt that I've seen before include "choose as candidate" , "Formally approve" , "Take up, follow" , "Embrace" , "Take into one's family" .)

I've seen this clue in the Evening Standard.

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