What does the cryptic crossword clue "Bearded temp when flustered is crotchety (3,8)" mean?

The wordplay uses an anagram. anagram of BEARDED + TEMP = BADTEMPERED The answer is BADTEMPERED.

Bearded temp when flustered is crotchety (3,8)

Daily Mail Cryptic #17161 | 12 Across | 2023-08-11 flower