If I understand right, total clicks means how many clicks I've got from google's search result. And the table beneath shows a breakdown of how many clicks I've got from each key words. Intuitively I'd think the Total Clicks number is a sum of all the clicks in the table below, but it is much bigger, why is this?
Google Webmaster search analytics: Why total clicks doesn't match with the total clicks of queries?
google search console;keywords;click tracking