One left right out? (5)
I believe the answer is:
loner
'one left right out?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'one left right out?' is the wordplay.
'left' becomes 'l' (common abbreviation).
'right' becomes 'r' (common abbreviation).
'out?' indicates putting letters inside.
'l'+'r'='lr'
'one' placed inside 'lr' is 'LONER'.
Can you help me to learn more?
(Other definitions for loner that I've seen before include "Individualist" , "One not desiring companionship" , "One lacking friends" , "No mixer" , "Isolated person" .)