Braggart (7)
'braggart' is the definition.
(synonyms)
This is all the clue.
(Other definitions for boaster that I've seen before include "Person who continually brags" , "Peacock" , "A sorbet for a braggart" , "swanky one" , "Braggart, blowhard" .)
'braggart' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for bighead that I've seen before include "Elder Dumbledore" , "Conceited person with outsize cranium" , "Conceited person (informal)" , "Braggart" , "Had gibe at informal egotist" .)
'braggart' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for egoist that I've seen before include "Excessively conceited person" , "A seld-centred, conceited person" , "It goes around with conceited fellow" , "Selfish type" , "It goes with self-centred man" .)