Angel hurries up to catch Paternoster’s opening (6)

I believe the answer is:

seraph

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'angel' is the definition.
(seraph is a kind of angel)

'hurries up to catch paternoster's opening' is the wordplay.
'hurries' becomes 'hares' (I can't justify this - if you can you should give a lot more credence to this answer).
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'to catch' is an insertion indicator.
'opening' says to take the initial letters.
The initial letter of 'paternoster' is 'p'.
'hares' backwards is 'serah'.
'serah' enclosing 'p' is 'SERAPH'.

Can you help me to learn more?

(Other definitions for seraph that I've seen before include "Leading angel" , "Angelic character" , "Angel - phrase (anag)" , "Angel of highest order" , "Heavenly creature" .)

I've seen this clue in The Independent.

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