Newly design part of train ventilation (6)

I believe the answer is:

invent

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

'newly design' is the definition.
'invent' can be an answer for 'design' (I've seen this before). I'm not sure about the 'newly' bit.

'part of train ventilation' is the wordplay.
'part of' indicates a hidden word.
'INVENT' can be found hidden inside 'train ventilation'.

Can you help me to learn more?

(Other definitions for invent that I've seen before include "Conceive" , "Design - discover" , "Come up with" , "Devise (something new)" , "Originate" .)

I've seen this clue in The Guardian.

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