"Such a lonely word,” according to a Billy Joel song (7)

I believe the answer is:
honesty
(Other definitions for honesty that I've seen before include "Fairness" , "Plant; sincerity" , "Candour" , "Probity; plant" , "Plant; truthfulness" .)
I believe the answer is:
honesty
(Other definitions for honesty that I've seen before include "Fairness" , "Plant; sincerity" , "Candour" , "Probity; plant" , "Plant; truthfulness" .)