Run in a person who's brutish in a row (7)
I believe the answer is:
abreast
'brutish in a row' is the definition.
I can't tell whether this definition defines the answer.
'run in a person' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'in' indicates putting letters inside.
'person' becomes 'beast' (beast is a kind of person).
'a'+'beast'='abeast'
'r' going into 'abeast' is 'ABREAST'.
'who's' is the link.
Can you help me to learn more?
(Other definitions for abreast that I've seen before include "Alongside one another and facing the same way" , "to be up to date" , "Side by side - in the picture" , "Level in line" , "Familiar" .)