Fitting (3)
'fitting' is the definition.
(both can mean appropriate)
This is the entire clue.
(Other definitions for due that I've seen before include "Expected; proper" , "imminent" , "Owed - expected" , "Owed, or payable immediately" , "Rightful" .)
'fitting' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for apt that I've seen before include "Ready to learn" , "Liable" , "apartment in Queens, say" , "Fitting - inclined" , "Having a tendency" .)
'fitting' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for proper that I've seen before include "Correct, decent" , "name someone's given" , "Correct; respectable" , "Conventional" , "Appropriate description" .)
(Other definitions for commensurate that I've seen before include "equal" , "Corresponding with" , "In proportion" , "Proportionate" , "Appropriate (to)" .)