People of the inconclusive kind? (3)
I believe the answer is:
kin
'people' is the definition.
(I've seen this in other clues)
'inconclusive kind?' is the wordplay.
'inconclusive' means to remove the last letter.
'kind' with its final letter taken off is 'KIN'.
'of the' is the link.
(Other definitions for kin that I've seen before include "Family and relations" , "A person's relatives, goes with kith" , "Flesh and blood" , "Family members" , "Connections; family" .)