Managing, noticed a blade (6,3)
I believe the answer is:
coping saw
'a blade' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'managing noticed' is the wordplay.
'managing' becomes 'coping' ('cope' can be a synonym of 'manage').
'noticed' becomes 'saw' (I've seen this in another clue).
'coping'+'saw'='COPING-SAW'
Can you help me to learn more?
(Other definitions for coping saw that I've seen before include "Tool" , "help in cutting corners?" , "cutter" .)