Something for the home that's welcome if retiring (2-2)
I believe the answer is:
hi-fi
'something for the home' is the definition.
'welcome if retiring' is the wordplay.
'welcome' becomes 'hi' (I've seen this in other clues).
'retiring' is a reversal indicator.
'if' in reverse letter order is 'fi'.
'hi'+'fi'='HI-FI'
'that's' is the link.
(Other definitions for hi-fi that I've seen before include "Good-quality sound equipment" , "Sound reproduction unit" , "Good quality sound system, in short" , "High-quality sound equipment" , "Stereo" .)