7 July - Solution for the last clue and the next cryptic crossword clue

The dryness of air moving with tidy changes (7)

Solution – aridity

Dryness = aridity

Air moving – the letters of "air" are moved

Tidy changes – the letters of "tidy" are changed

Ari + dity = aridity

Today’s cryptic crossword clue – solution tomorrow

Captured nine porkers at reformatory (5,8)

Hint – the split into 2 parts is that the first word is one part and the rest makes up the other part.