Exhibits left on board (6)
I believe the answer is:
sports
'exhibits' is the definition.
'left on board' is the wordplay.
I cannot really see how this works, but
'left' could be 'port' (left side of a ship - opposite of starboard) and 'port' is found in the answer.
'on board' could be 'ss' (I've seen this in other clues) and 'ss' is located in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for sports that I've seen before include "like a day at school" , "Games, fun activities" , "Eg, football, cricket" , "Wears (a noticeable item)" , "plays" .)