Crossword Genius

Group using a bottle opener at church (5)

Ross

I believe the answer is:

batch

'group' is the definition.
(a batch is a group or set)

'a bottle opener at church' is the wordplay.
'opener' suggests taking the first letters.
'church' becomes 'ch' (common abbreviation).
The initial letter of 'bottle' is 'b'.
'b'+'at'+'ch'='BATCH'

'using' is the link.

(Other definitions for batch that I've seen before include "Group of objects prepared or sent together" , "Production run" , "All the bread baked at the same time" , "Production quantity" , "Group of items (as handled)" .)

I've seen this clue in the Evening Standard.
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