Old soldiers' home (7)

I believe the answer is:

blighty

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'old soldiers' home' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

This is all the clue.

Can you help me to learn more?

(Other definitions for blighty that I've seen before include "England (sl.)" , "Home Country"" , "Britain (slang)" , "Disease-ridden" , "British soldiers' homeland" .)

I've seen this clue in the Evening Standard.

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