CRYPTIC CROSSWORD

ACROSS 1 Is outgrowth a nuisance in this Hungarian city, causing ... (8) 5 ... rot that’s secondary, not heavyweight? (6) 9 Expert marksman seen as the odd puzzle (4,4) 10 Immediately make up for introducing current heading (2,4) 12 String of pearls, perhaps, suitable to give to French darling (6) 13 Soak partner who no longer has first pick (5) 16 Saynotowaste(6) 17 Keep quiet to reach successful conclusion (6,2) 20 Was finding it tedious to make the entry, but took trouble (8) 21 Saw internet reference included to rise of marine mammal (6) 23 Lifeless, decomposing? Better inter (5) 25 Drivers of French opera (6) 28 Noises made by smallest piglets after first grub? (6) 29 Poetry read at college comprises everything known (8) 30 Strong box les ley emptied without danger (6) 31 Go up again to send care package (8) DOWN 1 Promise to remove roof from residence (4) 2 Arkwright’s 24-hour take on Allied landings? (1-3) 3 Run to the pass at top speed (4,5) 4 Dresses and footwear worn by man (6) 6 Louts transformed into flowers that bloom from the mud (5) 7 They deal in arms for new rugby players in football team (3,7) 8 Play the short-term worker established (3,7) 11 Tip right in and cause childhood cough (5) 14 TV cook fails to hit, we hear, with spanners (3,7) 15 Spontaneously removed from the box (3,3,4) 18 Where fortunes may be read by bird perched on the edge of the roof (3,6) 19 Work out how to remove third letter and be left with two (5) 22 Extra benefits conferred by weftless threads (6) 24 Concerned to talk about what it all amounts to (5) 26 Endure destruction of deer (4) 27 Live reprise cut short as found to be crudely offensive (4)