What does the cryptic crossword clue "What to do when in power shower we hear? (5)" mean?

The definition is "What to do when in power". The wordplay uses a homophone (sounds like). sounds like RAIN(shower) The answer is REIGN.

What to do when in power shower we hear? (5)

Times Cryptic #29044 | 7 Down | 2024-10-10 flower