Canopy (4)
(Other definitions for tester that I've seen before include "One trying out; canopy over bed" , "One who tries out - canopy" , "Examiner of street" , "Difficult question or challenge" , "Person examining" .)
'canopy' is the definition.
(awning is a kind of canopy)
This is the entire clue.
(Other definitions for awning that I've seen before include "Cover over shop-front" , "Canvas sheet" , "Canvas shade" , "Roof of canvas stretched on frame as shelter" , "Light protective roof" .)
'canopy' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for roof that I've seen before include "Upper covering" , "Topping structure" , "Top covering of structure" , "hit by someone in a temper" , "Top of car or house" .)