Wrong handling of sailor on drugs (7)
I believe the answer is:
abusing
'wrong handling' is the definition.
'abusing' can be an answer for 'handling' (abusing is a kind of handling). I'm unsure of the 'wrong' bit.
'sailor on drugs' is the wordplay.
'sailor' becomes 'ab' (abbreviation for able seaman).
'on drugs' becomes 'using' (I've seen this before).
'ab'+'using'='ABUSING'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for abusing that I've seen before include "Swearing" , "Treating badly" , "Taking undue advantage of and reviling" .)