Expected to resemble morning freshness (3)
I believe the answer is:
due
'expected' is the definition.
(similar in meaning)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for due that I've seen before include "Expected; proper" , "Entitlement" , "Expected, scheduled" , "Required; proper" , "Requisite" .)