Exercise cyborg regularly accepted (4)
I believe the answer is:
yoga
'exercise' is the definition.
(I have seen 'Spiritual exercise' mean 'yoga' so perhaps 'exercise' could also mean 'yoga')
'cyborg regularly accepted' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'accepted' becomes 'a' (financial abbreviation).
The alternate letters of 'cyborg' are 'yog'.
'yog'+'a'='YOGA'
(Other definitions for yoga that I've seen before include "Hindu spiritual system" , "Hindu spiritual and ascetic discipline" , "path to enlightenment" , "Hindu practice" , "Hindu physical and mental exercises" .)