Knocked (6)
'knocked' is the definition.
('tap' can be a synonym of 'knock')
This is all the clue.
(Other definitions for tapped that I've seen before include "hit" , "Intercepted (a phone)" , "Knocked gently" , "Rapped lightly or drew upon" , "Exploited (a resource)" .)
'knocked' is the definition.
('rap' can be a synonym of 'knock')
This is the entire clue.
(Other definitions for rapped that I've seen before include "Knocked sharply as on door" , "Talked rhythmically" , "Performed a kind of music" , "Spoke rhyming monologue to rock music" , "Struck" .)