Hannibal manufactured some soothing ointment (4)
I believe the answer is:
balm
'soothing ointment' is the definition.
(I've seen this in another clue)
'hannibal manufactured some' is the wordplay.
'some' says the answer is hidden in the clue.
'BALM' is hidden within 'hannibal manufactured'.
(Other definitions for balm that I've seen before include "Soothing herb" , "It's comforting" , "'Ointment, salve (4)'" , "A soothing influence on lamb" , "Soothing medicine for lamb" .)