American wife welcoming golf day getting shortened (8)
I believe the answer is:
abridged
'shortened' is the definition.
(similar in meaning)
'american wife welcoming golf day' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'wife' becomes 'bride' (I have seen 'Wife of groom ' mean 'bride' so perhaps 'wife' could also mean 'bride').
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'day' becomes 'd' (abbreviation for day).
'bride' enclosing 'g' is 'bridge'.
'a'+'bridge'+'d'='ABRIDGED'
'getting' acts as a link.
(Other definitions for abridged that I've seen before include "Abbreviated, contracted" , "Epitomised" , "Shorter" , "Cut short - big adder (anag)" , "Shortened as book may be" .)