What does the cryptic crossword clue "Bishop in brief broadcast to expose liar (6)" mean?

The wordplay uses an anagram. anagram of BRIEF (synonym="BRIEF") + B (synonym="=bishop, in chess") = FIBBER The answer is FIBBER.

Bishop in brief broadcast to expose liar (6)

Independent Cryptic #11658 | 18 Down | 2024-02-21 flower