Wed, presumably? (5)
I believe the answer is:
today
'wed presumably?' is the definition.
The definition and answer can be both related to time as well as being singular nouns.
Maybe there's a link between them I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for today that I've seen before include "Current period of 24 hours" , "At the present time, in general" , "Nowadays" , "The present time or age" , "Modern times" .)