Where a surfer stands straight? (5,5)
I believe the answer is:
above board
'straight?' 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 above board that I've seen before include "Legitimate, honest" , "Legal" , "OK?" , "In the open - without deception" , "Honest - fair" .)