Can you hear him in the dispensary? (7)
I believe the answer is:
spencer
'him in the dispensary?' is the definition.
'Spencer' can be an answer for 'him'. I'm not sure about the 'in the dispensary?' bit.
'can you hear' is the wordplay.
I cannot quite see how this works, but
'can' could be 'pen' (I've seen this before) and 'pen' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for spencer that I've seen before include "One of the 22 [FRANKS] very clumsy on TV" , "British painter" , "Old short vest" , "Garment" , "Princess Di originally" .)