What does the cryptic crossword clue "How this solution is put into place, fully (4,3,2,6)" mean?

The definition is "How this". The wordplay uses a double definition. Double definition The answer is FROMTOPTOBOTTOM.

How this solution is put into place, fully (4,3,2,6)

Guardian Cryptic #29584 | 5 Down | 2025-01-06 flower