Weirdly edgy partner ignores leftwing delegate from political group (5,5)
I believe the answer is:
green party
'weirdly edgy partner ignores' is the definition.
I know nothing about this answer so I can't tell whether this works.
'leftwing delegate from political group' is the wordplay.
'leftwing delegate' becomes 'green' (I can't justify this - if you can you should give a lot more credence to this answer).
'from' says to put letters next to each other.
'political group' becomes 'party' (a political party).
'green'+'party'='GREEN PARTY'
Can you help me to learn more?
(Other definitions for green party that I've seen before include "Ecologically motivated group" , "Group concerned for the environment" , "environmental group" , "Ecologically aware group" .)