Clean up for the doctor, quietly (3)
I believe the answer is:
mop
'clean up' is the definition.
'mop' can be an answer for 'clean' (mopping is a kind of cleaning). I'm not certain of the 'up' bit.
'the doctor quietly' is the wordplay.
'the doctor' becomes 'mo' (medical officer).
'quietly' becomes 'p' (p for piano and quiet).
'mo'+'p'='MOP'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for mop that I've seen before include "Implement for washing floor" , "Wet cleaner" , "Swab" , "It's used to wipe the floor" , "Clean; mass of hair" .)