An article shared by mother and father (3)
I believe the answer is:
the
'an article' is the definition.
(the definite article in English)
'shared by mother and father' is the wordplay.
'THE' is hidden in amongst the letters.
However, I am uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for the that I've seen before include "15, 16 One given taste of own medicine" , "That particular one" , "Over - - moon" , "Born - - - - - - - - (carol)" , "The most frequently occurring word in the Bible (and in this clue!)" .)