Exchanged with naked lady in version of Tinder (6,2)

'exchanged' is the definition.
(trading in is a kind of exchanging)

'naked lady in version of tinder' is the wordplay.
'naked' indicates the central letters (outside letters removed so centre is unclothed).
'in' indicates putting letters inside.
'version of' indicates anagramming the letters (another version of the same letters).
The central letters of 'lady' are 'ad'.
'tinder' is an anagram of 'tredin'.
'ad' placed inside 'tredin' is 'TRADED IN'.

'with' acts as a link.