The trademark image of upsetting viral phenomenon about empty laboratory (6)
I believe the answer is:
emblem
'the trademark image' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'upsetting viral phenomenon about empty laboratory' is the wordplay.
'upsetting' is a reversal indicator.
'viral phenomenon' becomes 'meme' (I have seen 'online phenomenon' mean 'meme' so perhaps 'phenomenon' could also mean 'meme'. I am not sure about the 'viral' bit.**).
'about' indicates putting letters inside.
'empty' suggests removing the centre.
'laboratory' becomes 'lab' ('lab' can be a synonym of 'laboratory').
'lab' with its centre removed is 'lb'.
'meme' enclosing 'lb' is 'melbme'.
'melbme' back-to-front is 'EMBLEM'.
'of' is the link.
Can you help me to learn more?
(Other definitions for emblem that I've seen before include "Symbolic device or badge" , "Device, badge or symbol" , "Typifying symbol" , "Symbolic representation on badge etc" , "Visible symbol of an abstract idea" .)