Collision (5)

'collision' is the definition.
(crash is a kind of collision)
This is all the clue.
(Other definitions for crash that I've seen before include "Impact" , "Collide violently" , "Disastrous market fall" , "Car accident" , "Dramatic fall" .)
'collision' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for prang that I've seen before include "knock" , "Crash (a car, aircraft) (colloq.)" , "Car collision" , "Minor shunt" , "Plane or car crash" .)
'collision' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for impact that I've seen before include "Force exerted by collision" , "Strong effect" , "Serious effect" , "Forcible contact; marked influence" , "Force of colllision or blow" .)