Crossword Genius

Southern post office employs partners (7)

Ross

I believe the answer is:

spouses

'partners' is the definition.
('spouse' can be a synonym of 'partner')

'southern post office employs' is the wordplay.
'southern' becomes 's' (abbreviation).
'post office' becomes 'po' (abbreviation).
'employs' becomes 'uses' ('use' can be a synonym of 'employ').
's'+'po'+'uses'='SPOUSES'

(Other definitions for spouses that I've seen before include "Wives or husbands" , "Partners in marriage" .)

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