Meant (8)
There are a few possibilities for this:
signified
'meant' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for designed that I've seen before include "Made a drawing or blueprint" , "Conceived and drew something" , "Planned or conceived for a specific purpose" , "Conceived of and produced 3dn" , "Intended; drew" .)
'meant' is the definition.
('intend' can be a synonym of 'mean')
This is all the clue.
(Other definitions for intended that I've seen before include "Deliberate" , "Planned, meant to" , "Meant - fiancee" , "Had in mind to" , "no mistake!" .)
'meant' is the definition.
(signifying is a kind of meaning)
This is all the clue.
(Another definition for signified that I've seen is " Meant".)