Crossword Genius

Before he hits top, crashes, I can only wish he'll succeed (1,4,3,3,4)


I believe the answer is:

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

'i can only wish he'll succeed' is the definition.
The definition suggests a singular noun but the answer is not.

'before he hits top crashes' is the wordplay.
'crashes' indicates anagramming the letters.
'beforehehitstop' with letters rearranged gives 'I HOPE FOR THE BEST'.

Can you help me to learn more?

I've seen this clue in Sydney Morning Herald.