Victor abroad stupidly makes boast (7)
I believe the answer is:
bravado
'boast' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for bravado that I've seen before include "Bottle" , "Boastful courage" , "boasting" , "Swaggering confidence" , "Unjustified assertion of confidence" .)