Get aid in rough weather from one employed to serve (10)

I believe the answer is:

headwaiter

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'get aid in rough weather' is the definition.
I can't judge whether this defines the answer.

'one employed to serve' is the wordplay.
'one' becomes 'header' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'employed' means one lot of letters goes inside another.
'to serve' becomes 'wait' (I've seen this in another clue).
'header' placed around 'wait' is 'HEADWAITER'.

'from' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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