Crossword Genius

Like the incompetent golfer's luck? (5)

Ross

I believe the answer is:

rough

I'm a little stuck... Click here to teach me more about this clue!

This could be a double definition.

'like' is the first definition.
Both the definition and answer are adjectives. Maybe there's an association between them I don't understand?

'incompetent golfer's luck?' is the second definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'the' acts as a link.

Can you help me to learn more?

(Other definitions for rough that I've seen before include "Not smooth, even or regular" , "general" , "Not gentle; unrefined" , "Rasping" , "Estimated" .)

I've seen this clue in the Evening Standard.
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