Clothes son obtained in recession (4)
I believe the answer is:
togs
'clothes' is the definition.
(togs is a kind of clothes)
'son obtained in recession' is the wordplay.
'son' becomes 's'.
'obtained' becomes 'got' ('get' can be a synonym of 'obtain').
'in recession' says the letters should be written in reverse.
's'+'got'='sgot'
'sgot' backwards is 'TOGS'.
(Other definitions for togs that I've seen before include "costumes [STRINE]" , "Gear" , "Clothes (informal)" , "Swimsuit" , "Clothes (sl.)" .)