Proceed cautiously can be summarized by three crossword solutions: TIPTOE (6 letters), Goslow (6 letters), and Walkafineline (13 letters). Tiptoeing is a way of walking very slowly and quietly, usually to avoid making noise or disturbing someone. Goslow is an informal way of saying 'go slow', which means to move at a slow pace. Finally, Walkafineline is a phrase that means to take great care in one's actions, as if walking on a thin line. All three phrases suggest that one should take their time and be careful when proceeding.