Before work, walk over high pass (5-3)

'high pass' is the definition.
(type of basketball pass)

'before work walk over' is the wordplay.
I cannot really understand how this works, but
'work' could be 'op' (abbreviation for opus) and 'op' is located in the answer.
'walk' could be 'alley' (I've seen this before) and 'alley' is found in the answer.
'over' could be 'o' (cricket abbreviation) and 'o' is present in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).