Moor boat, regularly going "ahoy there!" (7)
I believe the answer is:
othello
'moor' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for othello that I've seen before include "Shakespeare's tragic Moor who killed his wife" , "jealous husband" , "Shakespeare play set in Venice/Cyprus" , "As part" , "Jealous character" .)