Becomes aware of a new section (7)
I believe the answer is:
notices
'becomes aware of' is the definition.
(I've seen this in another clue)
'a new section' is the wordplay.
'a new' is an anagram indicator.
'section' is an anagram of 'NOTICES'.
(Other definitions for notices that I've seen before include "Perceives, sees" , "Pays attention" , "Observers in section" , "advertisements" , "Discovers" .)