One of a pair to exhibit shortly, perhaps in the middle of September (4)
I believe the answer is:
shoe
'in the middle of september' is the definition.
I can't judge whether this definition defines the answer.
'one of a pair to exhibit shortly' is the wordplay.
'one of a pair' becomes 'sho' (I can't justify this - if you can you should believe this answer much more).
'to' is a charade indicator (letters next to each other).
'shortly' says to take the initial letters.
The initial letter of 'exhibit' is 'e'.
'sho'+'e'='SHOE'
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for shoe that I've seen before include "Eg, brogue" , "9 maybe" , "Box for holding and dispensing from pack of cards" , "eg Trainer" , "Brogue or loafer, perhaps" .)