The term 'Tropics TOPIC' can be broken down into two words, 'Tropics' and 'TOPIC'. The word 'Tropics' is defined as the region near the equator, typically between the Tropic of Cancer and the Tropic of Capricorn, where the climate is hot and humid. The word 'TOPIC' is defined as a subject or issue for discussion or study. Therefore, the term 'Tropics TOPIC' refers to a subject or issue related to the tropical region near the equator. This could include topics such as the climate, geography, flora and fauna, culture, and history of the tropics. The crossword solution for this term is 'HEAT', which is an appropriate answer as the tropics are known for their hot and humid climate.