A step in the making of a street song (5)
I believe the answer is:
stair
'a step' is the definition.
(a single step in a staircase)
'street song' is the wordplay.
'street' becomes 'st' (abbreviation).
'song' becomes 'air' (air can mean a piece of music).
'st'+'air'='STAIR'
'in the making of a' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for stair that I've seen before include "means to go down" , "A step on the way up or down" , "one's seen in flight" , "Rising step" , "Step as part of flight" .)