The term 'annoying sorts' can be broken down into three crossword solutions: TWERPS (6 letters), PAINS (5 letters), and PESTS (5 letters). TWERPS are people who are considered to be foolish or silly, often in a way that is irritating. PAINS are people who are difficult to deal with, often because they are overly demanding or unpleasant. PESTS are people who are constantly bothering or annoying others. All three words refer to people who are annoying in some way.