13 ac. US botanist who invented around 300 uses for the peanut C_R_E_ 42 ac. Gauze-like cloth used in the theatre as a screen or backcloth _C_I_ 23 dn. Specialised US police unit trained in terrorism prevention and other high risk situations _W_T 53 dn. Philosopher who founded the Scottish School of Common Sense in the 18th century R_I_