Vertical; honest (7)
I believe the answer is:
upright
I believe this is a double definition.
'vertical' is the first definition.
(I know that vertical can be written as upright)
'honest' is the second definition.
(I've seen this before)
(Other definitions for upright that I've seen before include "Keyboard instrument" , "Virtuous" , "Type of piano" , "Pig hurt (anag) -- noble" , "with principle" .)