Spire (7)
I believe the answer is:
steeple
'spire' is the definition.
(I know that spire can be written as steeple)
This is all the clue.
(Other definitions for steeple that I've seen before include "that the church may be under" , "Tall tower with spire on top of church" , "Jack up this?" , "Pet eels (anag)" , "point" .)