Ink manufacturing family (3)
I believe the answer is:
kin
'family' is the definition.
(I know that family can be written as kin)
'ink manufacturing' is the wordplay.
'manufacturing' indicates an anagram.
'ink' with letters rearranged gives 'KIN'.
(Other definitions for kin that I've seen before include "Relatives from Kinnegad" , "Connections; family" , "Family and relations" , "Flesh and blood" , "Family members" .)