The close relations, as usual, sent out (7)
I believe the answer is:
parents
'the close relations' is the definition.
'parents' can be an answer for 'relations' (parent is a kind of relation). I am not certain of the 'the close' bit.
'usual sent out' is the wordplay.
'usual' becomes 'par' (par is an average golf score).
'out' is an anagram indicator (out can mean wrong or inaccurate).
'sent' anagrammed gives 'ents'.
'par'+'ents'='PARENTS'
'as' is the link.
Can you help me to learn more?
(Other definitions for parents that I've seen before include "Entraps (anag.)" , "Mother and father" , "Mum and dad" , "Mothers and fathers" .)