Leave a pound, that is for saver (6)

I believe the answer is:

goalie

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'saver' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'leave a pound that is' is the wordplay.
'leave' becomes 'go' (to go is to depart or leave).
'pound' becomes 'L' (abbreviation e.g. Lsd - pounds, shillings, pence).
'that is' becomes 'ie' (abbreviation for id est, 'that is' in Latin).
'go'+'a'+'l'+'ie'='GOALIE'

'for' is the link.

Can you help me to learn more?

(Other definitions for goalie that I've seen before include "Hart perhaps" , "Netkeeper, in short" , "Keeper (colloq.)" , "number one" , "Football team member" .)

I've seen this clue in The Independent.

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