Team schemer regularly sees host (5)
I believe the answer is:
emcee
'host' is the definition.
(emceeing is a kind of hosting)
'team schemer regularly' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'team'+'schemer'='teamschemer'
The alternate letters of 'teamschemer' are 'EMCEE'.
'sees' acts as a link.
(Other definitions for emcee that I've seen before include "I announce" , "present" , "I introduce speakers" , "Show host" , "Compere" .)