Talked about time in power shower (4)
I believe the answer is:
rain
'shower' is the definition.
(rainfall)
'talked about time in power' is the wordplay.
'talked about' indicates a 'sounds like' (homophone) clue.
'time in power' becomes 'reign' (eg the reign of a monarch).
'reign' sounds like 'RAIN'.
(Other definitions for rain that I've seen before include "Wet weather" , "Falling moisture" , "Come down in showers" , "bad weather" , "The right" .)