win/earn your spurs

win (one's) spurs

To prove one's skill in a particular area and earn distinction or a good position as a result. Once you've watched the triplets for an entire day, then you'll have won your spurs as their caretaker, as far as I'm concerned. After getting my bachelor's degree, I won my spurs as a teacher by working short-term contracts in small urban schools for two years.
See also: spur, win
Farlex Dictionary of Idioms.

earn one's spurs

Fig. to prove oneself. After that rodeo, all the cowboys agreed that Sally had earned her spurs. He felt that he had earned his spurs when he received his Ph.D.
See also: earn, spur
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

earn your spurs

or

win your spurs

mainly BRITISH
COMMON If you earn your spurs or win your spurs, you show you are capable of doing something well, and can be relied on to do it well in the future. How did he earn his spurs for the toughest police job in the country? Kampelman had won his spurs as U.S. negotiator at the Madrid talks. Note: In medieval times, when a man was made a knight, he was sometimes given a pair of golden spurs.
See also: earn, spur
Collins COBUILD Idioms Dictionary, 3rd ed.

win (or earn) your spurs

gain your first distinction or honours. informal
In the Middle Ages a knight who had won his spurs had attained knighthood by performing an act of bravery: a pair of gilt spurs were the distinguishing mark of a knight.
See also: spur, win
Farlex Partner Idioms Dictionary

win/earn your ˈspurs

(formal) become successful or famous: You’ll win your spurs as a teacher if you can control class 5.
See also: earn, spur, win
Farlex Partner Idioms Dictionary
See also:
  • win (one's) spurs
  • win one's spurs
  • win your spurs
  • earn
  • earn (one's) spurs
  • earn spurs
  • earn your spurs
  • spur
  • be half the (something) (one) used to be
  • worthy of the name