79. The material is 'twill' and follow exactly the edges of 'oversew' - that gives seven letters. 'Turn + a' as in playing a game - it's your..... will give the other 3 letters.
My last three are bugging me.
41.....but used here to burn the meatballs (7)
52. Here's Harry with added value (6.6) Immediate thought was to do with Harry Worth as I think his show was introduced with 'Here's Harry'.
Also there is Harry Lime (third man) and lime is another word for the Linden tree but those thoughts haven't got me anywhere.
Finally, 58. A growth ring round the mountain (4.4)
Any clues/hints would be gratefully accepted. Thanks!