Accountants joining troops in work moving medicine (6,3)
I believe the answer is:
castor oil
'moving medicine' is the definition.
'castor oil' can be an answer for 'medicine' (castor oil is a kind of medicine). I'm unsure of the 'moving' bit.
'accountants joining troops in work' is the wordplay.
'accountants' becomes 'CAs' (CA means chartered accountant).
'joining' means one lot of letters go next to another.
'troops' becomes 'or' (military abbreviation for other ranks).
'in' means one lot of letters goes inside another.
'work' becomes 'toil' (toil is a kind of work).
'or' put within 'toil' is 'toroil'.
'cas'+'toroil'='CASTOR-OIL'
Can you help me to learn more?
(Other definitions for castor oil that I've seen before include "Purgative from African shrub" , "A lubricant" , "Medicinal stuff" , "Some help to clear out inside" , "move furniture quietly?" .)