Spark from burning church tower (7)
I believe the answer is:
inspire
'spark' is the definition.
(I've seen this in another clue)
'from burning church tower' is the wordplay.
I cannot quite see how this works, but
'from' could be 'in' (I've seen this in other clues) and 'in' is located in the answer.
'tower' could be 'spire' (spire is a kind of tower) and 'spire' is found within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for inspire that I've seen before include "Breath in; animate" , "Arouse, prompt (to new heights)" , "Stimulate to creation" , "Excite" , "take a breath" .)