Make as one (5)
'make as one' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for unite that I've seen before include "Get together" , "old coin" , "Join together, become one" , "Pull together" , "Make one" .)
(Other definitions for blend that I've seen before include "Mix, stir" , "Mingle" , "Mix and combine" , "Amalgam" , "Amalgamate" .)