The maid’s awfully young, to one’s perturbation (6)

I believe the answer is:

dismay

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'one's perturbation' is the definition.
'dismay' can be an answer for 'perturbation' (I've seen this in another clue). I am not certain of the 'one's' bit.

'the maid's awfully young' is the wordplay.
'awfully' indicates an anagram.
'young' becomes 'y'.
'maids' with letters rearranged gives 'disma'.
'disma'+'y'='DISMAY'

'to' is the link.

Can you help me to learn more?

(Other definitions for dismay that I've seen before include "Sadden" , "Alarm, apprehension" , "Appal" , "Disappointment" , "Consternation, discouragement" .)

I've seen this clue in the Evening Standard.

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