Make aluminium stiff (6)
THE ANSWER
1F2O3R4M5A6L
FORMAL is the 6-letter answer to “Make aluminium stiff (6)”, last seen in The Sun Cryptic Crossword on 24 November 2025.
Where this clue appeared
The Sun Cryptic Crossword24 NOV 2025Related clues
One other clue in the database also answers FORMAL.
According to established conventions (6)FORMAL