Praise a god, say, keeping very quiet (7)
I believe the answer is:
applaud
'praise' is the definition.
(I know that applaud is a type of praise)
'a god say keeping very quiet' is the wordplay.
'god say' becomes 'laud' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'keeping' indicates putting letters inside.
'very quiet' becomes 'pp' (musical abbreviation for pianissimo).
'a'+'laud'='alaud'
'alaud' placed around 'pp' is 'APPLAUD'.
Can you help me to learn more?
(Other definitions for applaud that I've seen before include "Clap; praise" , "Express approbation" , "Express approval of a performance" , "Approve with clapping" , "Big up" .)