Good person with space in a shelter for relation (9)
I believe the answer is:
statement
'relation' is the definition.
(statement is a kind of relation)
'good person with space in a shelter' is the wordplay.
'good person' becomes 'st' (saint).
'with' says to put letters next to each other.
'space' becomes 'em' (in typography, a space as wide as a letter 'm').
'in' indicates putting letters inside.
'shelter' becomes 'tent' (tent is a kind of shelter**).
'a'+'tent'='atent'
'em' going into 'atent' is 'atement'.
'st'+'atement'='STATEMENT'
'for' is the link.
(Other definitions for statement that I've seen before include "Formal account, deposition" , "Financial summary" , "may be taken by police" , "Bank account document" , "Expression in words, account" .)