Working in America getting billed regularly (6)
I believe the answer is:
usable
'working' is the definition.
(I've seen this before)
'america getting billed regularly' is the wordplay.
'america' becomes 'usa' (United States of America).
'getting' says to put letters next to each other.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternating letters of 'billed' are 'ble'.
'usa'+'ble'='USABLE'
'in' acts as a link.
(Other definitions for usable that I've seen before include "Fit for employment" , "fit to wear" , "Practical" , "Of potential utility" , "Like something functional" .)