The term 'PRODUCTIVE BUZZER' is a combination of two words, 'PRODUCTIVE' and 'BUZZER'. The first word, 'PRODUCTIVE', refers to the ability to produce something, usually referring to a person's work output. The second word, 'BUZZER', refers to the sound made by a HONEYBEE when it is searching for food or communicating with other bees. The crossword solution for this term is 'HONEYBEE', which is an insect that is known for its hardworking nature and its ability to produce honey. Honeybees are also known for their buzzing sound, which is how they communicate with each other.