Earmark (6)
'earmark' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for assign that I've seen before include "Select and appoint for task" , "(Of a job) allocate to someone" , "Allocate (a task or duty)" , "Allocate; designate" , "Delegate" .)
'earmark' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for allocate that I've seen before include "Assign, distribute" , "award" , "Designate" , "Assign for a purpose" , "Allot" .)