If retired, live somewhere warm and comfortable (8)

I believe the answer is:

fireside

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'somewhere warm and comfortable' is the definition.
I can't tell whether this definition defines the answer.

'if retired live' is the wordplay.
'retired' shows that the letters should be reversed in order.
'live' becomes 'reside' (residing is a kind of living).
'if' backwards is 'fi'.
'fi'+'reside'='FIRESIDE'

Can you help me to learn more?

(Other definitions for fireside that I've seen before include "One warmed by this" , "focus for domesticity" , "somewhere cosy" , "warm, cosy place" , "Inglenook" .)

I've seen this clue in The Telegraph.

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