Doctor with head buried in a good book prescribes drops (7)
I believe the answer is:
dribble
'doctor with' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for dribble that I've seen before include "Flow in a thin stream" , "Use dibbler to manipulate ball cleverly in soccer" , "Salivate" , "Just a bit" , "Emit saliva through lips" .)