Genuine as our type, ultimately (7)
I believe the answer is:
sincere
'genuine' is the definition.
(sincere can mean authentic or genuine)
'as our type ultimately' is the wordplay.
'as' becomes 'since' (both can mean as a result of).
'ultimately' suggests the final letters.
The last letters of 'our type' are 're'.
'since'+'re'='SINCERE'
(Other definitions for sincere that I've seen before include "(Of person) genuine" , "devout" , "Lacking in deceit" , "Genuine; deceit-free" , "True" .)