Passage Sun's compiler will read aloud (5)
I believe the answer is:
aisle
'passage' is the definition.
(aisle can mean a path or passageway)
'compiler will read aloud' is the wordplay.
'compiler' becomes 'I' (the person who is writing these clues).
'will' becomes ''ll' (contracted form, as in 'he'll' - 'he will').
'read aloud' indicates a 'sounds like' (homophone) clue.
'i'+'ll'='ill'
'ill' sounds like 'AISLE'.
'sun's' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for aisle that I've seen before include "Supermarket passageway" , "channel" , "Passages between seating areas" , "Supermarket section" , "way to the altar?" .)