Work among doctors giving small doses (5)
I believe the answer is:
drops
'small doses' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps you can see an association between them that I can't see?
'work among doctors' is the wordplay.
'work' becomes 'op' (abbreviation for opus).
'among' is an insertion indicator (inserted letters are placed among others).
'doctors' becomes 'drs' ('Dr' can be a synonym of 'doctor').
'op' placed within 'drs' is 'DROPS'.
'giving' is the link.
Can you help me to learn more?
(Other definitions for drops that I've seen before include "Small quantities of liquid" , "treatment for eye" , "sweets" , "Abandons" , "treatment for eyes" .)