Is keen to get the building site surrounding the church (6)
I believe the answer is:
itches
'is keen to get' is the definition.
I can't judge whether this defines the answer.
'building site surrounding the church' is the wordplay.
'building' indicates an anagram.
'surrounding' means one lot of letters goes inside another.
'the church' becomes 'ch' (common abbreviation).
'site' is an anagram of 'ites'.
'ites' going around 'ch' is 'ITCHES'.
'the' is the link.
Can you help me to learn more?
(Other definitions for itches that I've seen before include "They're in need of a scratch" , "Has uncomfortable tingling sensation" , "Tingles as skin may" , "Feels tingling sensation in skin" , "They need to be scratched" .)