The term 'ability to banter' can be summarized as having the capacity for witty conversation. This is often seen as a desirable trait in social situations, as it can help to lighten the mood and create an enjoyable atmosphere. The crossword solution for this term is 'WIT', which is an acronym for 'Wisdom, Intelligence, and Talent'. This acronym is used to describe someone who is able to think quickly and come up with clever responses in conversation.