Very small, yet newsy — seen about (6-6)
I believe the answer is:
teensy-weensy
'very small' is the definition.
(I've seen this before)
'yet newsy seen about' is the wordplay.
'about' is an anagram indicator.
'yet'+'newsy'+'seen'='yetnewsyseen'
'yetnewsyseen' with letters rearranged gives 'TEENSY-WEENSY'.
(Other definitions for teensy-weensy that I've seen before include "Very tiny" , "Very small" .)