Decent type of piano (7)
I believe the answer is:
upright
I believe this is a double definition.
'decent' is the first definition.
(thesaurus)
'type of piano' is the second definition.
(upright piano)
(Other definitions for upright that I've seen before include "Vertical post in rugby goal - strictly honourable" , "Sort of piano" , "Type of piano" , "Standing straight up" , "Good" .)