What does the cryptic crossword clue "Weather unsettled in part due to these constant movements (3,4)" mean?

The wordplay uses a hidden word. hidden inside (“in part”) of: [Wea]-THER UNS-[ettled] The answer is THERUNS.

Weather unsettled in part due to these constant movements (3,4)

Guardian Cryptic #29457 | 10 Across | 2024-08-09 flower