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' is an anagram indicator.
'ink' is an anagram of 'KIN'.
(Other definitions for kin that I've seen before include "Relations, go with kith" , "Group of relations" , "One's family/relations" , "Family members" , "Connections; family" .)