What does the cryptic crossword clue "PS: this PE teacher could become an expert in communication (6,9)" mean?

The wordplay uses an anagram. anagram of PS: + THIS + PE + TEACHER = SPEECH THERAPIST The answer is SPEECH THERAPIST.

What is the answer to "PS: this PE teacher could become an expert in communication (6,9)"?

The answer is SPEECH THERAPIST.

Times Cryptic #26677 | 23 Across | 2017-03-20 flower