The writer behind article showing feature of some crosswords (5)
I believe the answer is:
theme
'feature of some crosswords' is the definition.
'theme' can be an answer for 'feature' (thesaurus). I am not sure about the 'of some crosswords' bit.
'the writer behind article' is the wordplay.
'the writer' becomes 'me' (the person who wrote the clues).
'behind' means one lot of letters go next to another.
'article' becomes 'the' (the definite article).
'me' put after 'the' is 'THEME'.
'showing' is the link.
Can you help me to learn more?
(Other definitions for theme that I've seen before include "subject,motif" , "basis for variations" , "(Writer's) topic" , "Subject set for discussion" , "notedly subject to variation" .)