On the street, possibly said to be a cruel type (6)
I believe the answer is:
sadist
'a cruel type' is the definition.
(I've seen this before)
'on the street possibly said' is the wordplay.
'on' means one lot of letters go next to another.
'the street' becomes 'st'.
'possibly' indicates anagramming the letters.
'said' with letters rearranged gives 'sadi'.
'st' after 'sadi' is 'SADIST'.
'to be' acts as a link.
(Other definitions for sadist that I've seen before include "'Tis sad s/he likes to inflict pain" , "One who enjoys cruelty" , "Deviant" , "One deriving pleasure from inflicting pain on others" , "One enjoying inflicting pain" .)