What does the cryptic crossword clue "It's important to show half your wage went missing (6)" mean?

The wordplay uses a charade (building blocks). UR (synonym="UR") + GE (synonym="GE") + NT (synonym="NT") = URGENT The answer is URGENT.

It's important to show half your wage went missing (6)

Guardian Cryptic #29240 | 20 Down | 2023-11-29 flower