Currently working after retirement, always inspired by piles of cash (8)
I believe the answer is:
nowadays
'currently' is the definition.
(I've seen this before)
'working after retirement always inspired by piles of cash' is the wordplay.
'working' becomes 'on'.
'after retirement' says the letters should be written in reverse.
'always' becomes 'ay'.
'inspired by' indicates putting letters inside.
'piles of cash' becomes 'wads'.
'on' in reverse letter order is 'no'.
'ay' inserted within 'wads' is 'wadays'.
'no'+'wadays'='NOWADAYS'
(Other definitions for nowadays that I've seen before include "At this juncture" , "Gestures of respect" , "today!" , "in the current period?" , "In the 21st century" .)