What does the cryptic crossword clue "Kidnap missing leader? Certainly (5)" mean?

The definition is "Certainly". The wordplay uses acrostic. NATCH (deletion) = NATCH; definition: "Certainly" The answer is NATCH.

Kidnap missing leader? Certainly (5)

Guardian Cryptic #29603 | 12 Across | 2025-01-28 flower