The term 'PART OF A LOBSTER POT' can be summarized by the crossword solution SLAT, which is a four-letter word. A SLAT is a thin, flat strip of wood or metal used to make up the sides of a lobster pot. Lobster pots are traps used by fishermen to catch lobsters. The slats are arranged in a lattice pattern and held together with rope or wire. The slats allow water to flow through the pot, while trapping the lobsters inside.