Disgusted at welcome that’s got extended to sides (8)
I believe the answer is:
loathing
'disgusted' is the definition.
(thesaurus)
'welcome that's got extended to sides' is the wordplay.
I cannot quite see how this works, but
'welcome' could be 'hi' (both are greetings) and 'hi' is found within the answer.
This explanation may well be incorrect...
'at' is the link.
Can you help me to learn more?
(Other definitions for loathing that I've seen before include "Intense dislike" , "Abhorring" , "Alight on, feeling great dislike" , "Disliking intensely" , "Abhorrence" .)