Press engagement quiet band keeps to (5,2)
I believe the answer is:
photo op
'press engagement' is the definition.
The definition suggests a singular noun which matches the answer.
'quiet band keeps to' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'band' becomes 'hoop' (hoop is a kind of band).
'keeps' is an insertion indicator (inserted letters are kept inside).
'hoop' placed around 'to' is 'hotoop'.
'p'+'hotoop'='PHOTO-OP'
Can you help me to learn more?
(Other definitions for photo op that I've seen before include "Chance for publicity" , "Chance to shoot" .)