The term 'Holy Terror' is often used to describe someone who is a nuisance, a troublemaker, or a difficult person. The crossword solutions for this term include 'ANNOYANCE' (9 letters), 'ATTILA' (6 letters), 'BRAT' (4 letters), 'HELLION' (7 letters), 'IMP' (3 letters), 'URCHIN' (6 letters), 'Tigress' (7 letters), and 'DEVILISH' (8 letters). All of these words can be used to describe someone who is a holy terror, from the more mild 'BRAT' and 'IMP' to the more extreme 'ATTILA' and 'DEVILISH'. The word 'WHIPPERSNAPPER' (14 letters) is also a fitting description for someone who is a holy terror, as it implies someone who is young and mischievous.