Fiddle with is a term used to describe the act of making small changes or adjustments to something. The crossword solutions for this term include FIX (3 letters), TINKER (6 letters), FINGER (6 letters), TOUCH (5 letters), INTERFERE (9 letters), RIG (3 letters), EMEND (5 letters), TAMPER (6 letters), TOY (3 letters), futz (4 letters), ALTER (5 letters), AMEND (5 letters), ADJUST (6 letters), and CORRECT (7 letters). All of these words refer to the act of making small changes or adjustments to something, either by hand or with tools.