Walk around certain to be adored (9)
I believe the answer is:
treasured
'be adored' is the definition.
(thesaurus)
'walk around certain' is the wordplay.
'walk' becomes 'tread' (treading is a kind of walking**).
'around' indicates putting letters inside.
'certain' becomes 'sure' ('sure' can be a synonym of 'certain').
'tread' placed around 'sure' is 'TREASURED'.
'to' acts as a link.
(Other definitions for treasured that I've seen before include "Regarded as precious" , "Valuable" , "Darling" , "Much-valued" , "Chersihed, held dear" .)