Make a correction to starboard (5)
I believe the answer is:
right
'to starboard' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for right that I've seen before include "licence" , "True - just claim" , "The Tory side" , "Factual" , "Just - correct - title" .)