Complex sentence: The term sewing circle usually refers to a group of people, usually women, who meet regularly for the purpose of sewing, often for charitable causes while chatting, gossiping, and/or discussing politics.
Split into simpler sentences: The term sewing circle usually refers to a group of people, usually women, who meet regularly for the purpose of sewing, often for charitable causes while chatting gossip and politics. They often also support charitable causes while chatting, gossiping, and/or discussing politics.