What does the cryptic crossword clue "Pedant and stoic clash explosively (10)" mean?

The definition is "Pedant". The wordplay uses an anagram. anagram of STOIC + CLASH = SCHOLASTIC; definition: "Pedant" The answer is SCHOLASTIC.

Pedant and stoic clash explosively (10)

Independent Cryptic #1634 | 28 Across | 2021-06-20 flower