Value returned welcoming a Biblical brother (4)
I believe the answer is:
esau
'biblical brother' is the definition.
(I've seen this in another clue)
'value returned welcoming a' is the wordplay.
'value' becomes 'use' (I've seen this before).
'returned' says the letters should be written in reverse.
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'use' written backwards gives 'esu'.
'esu' going around 'a' is 'ESAU'.
(Other definitions for esau that I've seen before include "Biblical man who sold his birthright for a mess of pottage" , "Jacob's brother (Gen.)" , "Birthright seller (Bible)" , "wronged brother" , "Biblical twin to Jacob" .)