Sound article in Times (3)
I believe the answer is:
'sound' is the definition.
(bay is a kind of sound)
'article in times' is the wordplay.
'article' becomes 'a' (indefinite article).
'in' indicates putting letters inside.
'times' becomes 'by' (I've seen this in other clues**).
'a' going within 'by' is 'BAY'.
(Other definitions for bay that I've seen before include "Small alcove" , "Parking slot" , "Tree; horse; bark loudly" , "Inlet; shrub" , "Broad curved inlet" .)