What does the cryptic crossword clue "Chat sociable Theresa is in need of (7)" mean?

The definition is "Chat". The wordplay uses a hidden word. Hidden in "chat sociaBLE THEResa is in need of" The answer is BLETHER.

Chat sociable Theresa is in need of (7)

Times Cryptic #28555 | 20 Down | 2023-03-20 flower