Elephant sometimes seen in basin in church (4)

I believe the answer is:

font

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'basin in church' is the definition.
'font' can be an answer for 'basin' (font is a kind of basin). I'm unsure of the 'in church' bit.

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for font that I've seen before include "Size and style of type" , "Gothic" , "Style of lettering" , "Baptismal tank" , "Baptismal basin" .)

I've seen this clue in The Independent.

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