Passage I will read aloud (5)
I believe the answer is:
aisle
'passage' is the definition.
(aisle can mean a path or passageway)
'i will read aloud' is the wordplay.
'i will' becomes 'I'll' (abbreviation).
'read aloud' shows a homophone (sound like).
'ill' is a homophone of 'AISLE'.
(Other definitions for aisle that I've seen before include "way for prospective union members?" , "Passage between seating areas" , "Corridor" , "The way to get married in church?" , "Passage down the side of a church nave" .)