The Guardian - Quick crossword No 15,162 - Dec 11 2018

Clues Answers
Incendiarism ARSON
Italian-American film director of It's a Wonderful Life, d.1991 CAPRA
Lasts interminably DRAGSON
Merciful — grub GENTLE
Muse of lyric poetry ERATO
Of sound mind — not a liar (anag) RATIONAL
Pugnacity BELLIGERENCE
Refrain from interfering with satisfactory situation LETWELLALONE
Sea creature with a spiral tusk NARWHAL
Toenail (anag) — delight ELATION
Vendor SELLER
Weep noisily BAWL
Clues Answers
Adventurous ENTERPRISING
Amorous advance PASS
Bargain HAGGLE
Composer of Messiah, d.1759 HANDEL
Decisive argument CLINCHER
Deserve MERIT
Deteriorate through neglect GOTOPOT
Distribute ALLOCATE
Either side of the backbone between the hip bone and ribs LOIN
Figurative METAPHORICAL
Highly excited AGOG
Imprisoned REMANDED