What does the cryptic crossword clue "New form of heat pump not widely established (3,2,3,3)" mean?

This cryptic clue uses wordplay to arrive at the answer. Visit the page for progressive hints — definition, wordplay type, and a full step-by-step explanation.

New form of heat pump not widely established (3,2,3,3)

Times Cryptic #29323 | 12 Down | 2025-09-01 flower

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