Crossword Genius

Summon an errand boy (4)

Ross

I believe the answer is:

page

I believe this is a double definition.

'summon' is the first definition.
(I know that page is a more specific form of summon)

'an errand boy' is the second definition.
(I know that page is a type of errand boy)

(Other definitions for page that I've seen before include "Young attendant for part of a book" , "Leaf; call over PA system" , "Kind of leaf, or boy in old court" , "lad wanted to run errands" , "Youth acting as a knight's attendant" .)

I've seen this clue in The Mirror.
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