The term 'DO IMPROV' can be broken down into two crossword solutions: MAKEUP (6 letters) and ADLIB (5 letters). MAKEUP is a term used in the entertainment industry to refer to the application of cosmetics to an actor or performer's face and body to enhance their appearance. ADLIB is a term used to describe when an actor or performer improvises their lines or performance, often in response to an unexpected situation. Together, these two terms form the phrase 'DO IMPROV', which is a call to action for actors and performers to use MAKEUP and adlib their lines or performance.