Bell site (7)
I believe the answer is:
steeple
'bell site' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for steeple that I've seen before include "Pointed structure" , "Pointed church tower" , "Pet eels (anag)" , "Jack up this?" , "Tall tower with spire on top of church" .)