The term 'play up' is used to describe a variety of activities. The crossword solutions for this term include 'UNDERSCORE' (10 letters), which means to draw attention to something; 'FEATURE' (7 letters), which means to highlight or emphasize something; 'emphasize' (9 letters), which means to give extra importance to something; 'TOUT' (4 letters), which means to promote or advertise something; 'ACCENTUATE' (10 letters), which means to emphasize or draw attention to something; 'SELL' (4 letters), which means to promote or advertise something; and 'MISBEHAVE' (9 letters), which means to act inappropriately or in a way that is not socially acceptable. Finally, 'STRESS' (6 letters) is used to describe the feeling of being overwhelmed or anxious. All of these words are related to the term 'play up' and can be used to describe activities that involve drawing attention to something or promoting it.