Victoria's one abysmally low year? (5,2)
I believe the answer is:
royal we
'victoria's one' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'abysmally low year?' is the wordplay.
'abysmally' indicates anagramming the letters.
'low'+'year'='lowyear'
'lowyear' anagrammed gives 'ROYAL WE'.
Can you help me to learn more?
(Other definitions for royal we that I've seen before include "Monarch's use of the first person plural" , "Monarch's way of referring to themselves" , "Coming from eg Edward, Henry or Charles" , "for King George I?" , "Queen's pronoun" .)