Yes, you’re plugging USB into box the wrong way round (6-2)
I believe the answer is:
thumbs-up
'yes' is the definition.
(thesaurus)
'you're plugging usb into box the wrong way round' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'usb' is 'bsu' which is within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
The remaining letters 'hump' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for thumbs-up that I've seen before include "Elevation of thick fingers as sign of approval" , "Old Roman sign for mercy, with elevated digits" , "Manual indicator of victory or approval" , "Approving sign" , "Indication of approval" .)