Heartfelt (4)
'heartfelt' is the definition.
(I know that heartfelt can be written as earnest)
This is all the clue.
(Other definitions for earnest that I've seen before include "Sincere, solemn" , "art collector" , "Serious-minded" , "Serious in intention" , "Oscar Wilde play 'The Importance of Being . . . . . . .'" .)
'heartfelt' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for sincere that I've seen before include "Pure" , "Unaffected" , "Candid" , "Perfect" , "natural?" .)
'heartfelt' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for genuine that I've seen before include "Sincere; authentic" , "'Real, unfeigned (7)'" , "Real; sincere" , "Bona fide, authentic" , "Ingenue - the real McCoy" .)
'heartfelt' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for warm that I've seen before include "excited" , "Cordial" , "Showing affection" , "Getting close to target" , "Apply heat to" .)