Concoct (5,2)
'concoct' is the definition.
(I know that concoct can be written as hatch)
This is the entire clue.
(Other definitions for hatch that I've seen before include "Access opening" , "Breed" , "Of young bird or fish, emerge from egg" , "Dream up" , "Think up" .)
'concoct' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dream up that I've seen before include "Concoct" , "Invent (something)" , "Invent through imagination" , "Imagine, invent" , "'Devise or invent (5,2)'" .)