Witnessed something in the woodshed? (3)
I believe the answer is:
saw
I believe this is a double definition.
'witnessed' is the first definition.
('see' can be a synonym of 'witness')
'something in the woodshed?' is the second definition.
(a saw might be found in a woodshed)
(Other definitions for saw that I've seen before include "See 23" , "Wood-cutting tool" , "Hand tool; proverb" , "Observed; tool" , "Pithy saying" .)