From Longman Dictionary of Contemporary Englishbe a credit to somebody/somethingbe a credit to somebody/something (also do somebody/something credit)BEHAVE to behave so well or be so successful that your family, team etc are proud of you She’s a credit to her profession. Your children really do you credit. → credit
Examples from the Corpus
be a credit to somebody/something• Jo's a credit to her profession.• Is their country going to be a credit to them?• The crowd were a credit to the game of golf.• His garden was a credit to him, too, and he grew flowers and potatoes.• I was a credit to the family and I was a disgrace to it.• Any excess over cost of replacement is credited to capital reserve or a specific asset replacement account.• Mr. Macfie also gave £400, the annual interest to be credited to the Sustentation Fund of the congregation.• To be a credit to the family was the justification for birth.• Equivalent sums would be credited to the enterprises' bank accounts, subject to verification that the money had been earned legally. 