Answer: boasted

AnswerCrossword Clue
BOASTED

Bragged

BOASTED

Tooted one's own horn

BOASTED

Did some chest-thumping

BOASTED
Laid it on thick
BOASTED
Sang one's own praises
BOASTEDTalked big
BOASTEDCrowed.
BOASTEDExulted.
BOASTEDVaunted
BOASTEDForwent modesty