Having a bite is an expression used to describe the act of eating something. The crossword solutions for this term are TANGY (5 letters), CAUSTIC (7 letters), ACERB (5 letters), and ZESTY (5 letters). TANGY refers to something having a sharp, acidic taste, while CAUSTIC describes something that is corrosive or bitter. ACERB is similar to CAUSTIC, but it is more specifically used to describe something that is sour or sharp in taste. Lastly, ZESTY is used to describe something that has a strong, lively flavor.