Crossword Genius

Job on estate — one expected to save up for it? (10)

Ross

I believe the answer is:

gamekeeper

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'job on estate' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?

'one expected to save up for it?' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'me' (a setter might use 'one' to humourously mean 'me') and 'me' is present in the answer.
'save' could be 'keep' (synonyms) and 'keep' is found within the answer.
'it?' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is located in the answer.
The remaining letters 'gar' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for gamekeeper that I've seen before include "Breeder of birds to be shot" , "Breeder of pheasants, etc" , "who once poached?" , "Estate employee" , "One raising birds for shoot" .)

I've seen this clue in The Times.
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