Railway station put out some pop, adding to noise (10)
I believe the answer is:
paddington
'railway station' is the definition.
'put out some pop adding to noise' is the wordplay.
'put out some' indicates a hidden word (the answer must be taken out of the clue).
'PADDINGTON' is hidden within 'pop adding to noise'.
(Other definitions for paddington that I've seen before include "A figure child might want for Play" , "London rail terminus" , "London station - famous bear" .)