Briefly survey sports ground supported by church (5)
I believe the answer is:
recce
'briefly survey' is the definition.
'recce' can be an answer for 'survey' (I've seen this before). I am unsure of the 'briefly' bit.
'sports ground supported by church' is the wordplay.
'sports ground' becomes 'rec' (abbreviation for recreation ground).
'supported by' means one lot of letters go next to another (in a down clue, some letters hold up others).
'church' becomes 'CE' (abbreviation for Church of England).
'rec'+'ce'='RECCE'
Can you help me to learn more?
(Other definitions for recce that I've seen before include "Survey (sl.)" , "Preliminary survey" , "Check out" , "Survey to obtain information" , "Advance exploration" .)