Broaden (5)

'broaden' is the definition.
(I know that broaden can be written as widen)
This is all the clue.
(Other definitions for widen that I've seen before include "Dilate" , "Make broader" , "Extend across" , "Spread" , "Stretch sideways" .)
'broaden' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for expand that I've seen before include "Increase in volume" , "Blow up" , "Become larger or more extensive" , "put on weight?" , "Dilate" .)