Quietly stolen old picture (5)
I believe the answer is:
photo
'picture' is the definition.
(a photograph)
'quietly stolen old' is the wordplay.
'quietly' becomes 'p' (musical symbol).
'stolen' becomes 'hot' (stolen goods are 'hot').
'old' becomes 'o' (abbreviation as in OT - Old Testament).
'p'+'hot'+'o'='PHOTO'
(Other definitions for photo that I've seen before include "In brief, a snapshot" , "Snap (abbrev.)" , "Camera picture" , "Snap, pic" , "Snap - shot" .)