The most common and most likely answer to this crossword clue is the 11 letter word WINDSURFING
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Buddy explains!
The straight part
We know that "Consequence of board director receiving a blow in the main" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case consequence of board director receiving a blow in the main = windsurfing.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does WINDSURFING mean?
WINDSURFING verb- To ride a surfboard that has an attached sail
- A marine sport in which one stands on a floating board (typically 2 - 3 meters in length) to which a sail is attached. The board is steered by tilting the sail or banking the board. Some windsurfers use large waves to perform jumps and other stunts.