A group of directors on a cruise? (6)
I believe the answer is:
aboard
'a group of directors on a cruise?' is the definition.
I can't judge whether this defines the answer.
'a group of directors on a' is the wordplay.
'a group of directors' becomes 'board' (board of directors).
'on' is a charade indicator (letters next to each other).
'board' put after 'a' is 'ABOARD'.
Can you help me to learn more?
(Other definitions for aboard that I've seen before include "On (a ship, train, etc)" , "On (a ship/plane)" , "Part of the group" , "ready to take off" , "'On a ship or train, say (6)'" .)