Small articles breach crazy paper's title (8)
I believe the answer is:
masthead
'paper's title' is the definition.
(part of a front page showing a newspaper's title)
'small articles breach crazy' is the wordplay.
I cannot really see how this works, but
'small' could be 's' (abbreviation - e.g. clothes size) and 's' is found in the answer.
'articles' could be 'thea' (two examples of the part-of-speech: the+a) and 'thea' is found within the answer.
'crazy' could be 'mad' (synonyms) and 'mad' is present in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
(Other definitions for masthead that I've seen before include "flag" , "furthest point from sea" , "Top of paper's front page" , "Printed newspaper details" , "Times title here?" .)