Honest, but not grand? (7)
I believe the answer is:
upright
This clue is a double definition.
'honest' is the first definition.
(thesaurus)
'not grand?' is the second definition.
(I've seen this before)
'but' is the link.
(Other definitions for upright that I've seen before include "Vertical post in rugby goal - strictly honourable" , "Key item" , "Standing straight up" , "Pole; principled" , "Virtuous" .)