American agent managed to turn around company (5)
I believe the answer is:
narco
'american agent' is the definition.
I know nothing about this answer so I can't judge whether this works.
'managed to turn around company' is the wordplay.
'managed' becomes 'ran' (both can mean organised or was in charge of).
'to turn around' is a reversal indicator (I've seen 'turning around' mean this).
'company' becomes 'co' (abbreviation).
'ran' in reverse letter order is 'nar'.
'nar'+'co'='NARCO'
Can you help me to learn more?
(Other definitions for narco that I've seen before include "Member of US drugs squad" , "Drugs agent (US slang)" , "American drug agent" , "Drug trafficker" .)