Guide to reflect Almighty’s protector (9,3)

I believe the answer is:

shepherds dog

I'm a little stuck... Click here to teach me more about this clue!

'guide to reflect almighty's protector' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'guide to reflect almighty's protector' is the wordplay.
'guide' becomes 'shepherd' (I've seen this before).
'to reflect' is a reversal indicator.
'almighty's protector' becomes 'gods' (I can't justify this - if you can you should believe this answer much more).
'gods' in reverse letter order is 'sdog'.
'shepherd'+'sdog'='SHEPHERDS DOG'

Can you help me to learn more?

I've seen this clue in The Hindu.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.