Grace under pressure is a phrase that is often used to describe someone who is able to remain composed and confident in difficult or stressful situations. The two crossword solutions for this phrase are APLOMB (6 letters) and POISE (5 letters). APLOMB is defined as self-confidence, assurance, and composure, while POISE is defined as a dignified and self-assured manner. Both words can be used to describe someone who is able to maintain grace under pressure.