Some seaman apparently raised hat (6)
I believe the answer is:
panama
'hat' is the definition.
(panama is a kind of hat)
'some seaman apparently raised' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'raised' is a reversal indicator.
'amanap' is hidden in the letters of 'seaman apparently'.
'amanap' written backwards gives 'PANAMA'.
(Other definitions for panama that I've seen before include "Headgear for a canal" , "Great canal connecting Atlantic and Pacific" , "Canal state; hat" , "isthmus" , "American canal or kind of hat" .)