Do, kind of, have a partner (7)
I believe the answer is:
consort
'partner' is the definition.
(synonyms)
'do kind' is the wordplay.
'do' becomes 'con' (both can mean to defraud).
'kind' becomes 'sort' (synonyms).
'con'+'sort'='CONSORT'
'of have a' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for consort that I've seen before include "wife, perhaps" , "Companion; ship sailing with another" , "A monarch's spouse" , "Small group; spouse" , "Husband or wife of a monarch" .)