Regularly feed team cheese (4)
I believe the answer is:
feta
'cheese' is the definition.
(I've seen this before)
'regularly feed team' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'feed'+'team'='feedteam'
The alternate letters of 'feedteam' are 'FETA'.
(Other definitions for feta that I've seen before include "Salty goat or sheep milk cheese" , "Salty Greek cheese" , "Greek sheep or goats' cheese" , "food there" , "10 down cheese" .)