Consider idle team being dismissed regularly (4)
I believe the answer is:
deem
'consider' is the definition.
(I know that deem is a more specific form of the action consider)
'idle team being dismissed regularly' is the wordplay.
'being dismissed regularly' means one should take alternating letters (letters removed at regular intervals).
'idle'+'team'='idleteam'
The alternating letters of 'idleteam' are 'DEEM'.
(Other definitions for deem that I've seen before include "View as" , "Card-table felt" , "Judge, think, consider" , "Adjudge" , "Regard in a specific way" .)