Jumbo 1232

[hope3fully]

11d looking to incorporate chsrge for major promotio 4,7-- a-,- - l-ing 31d poll advises changing film technique 3,8 l- -, i- - -ing 46a african runners a source of mischief,sorry to say 7 u- - -l-s

[mallyh]

46a imp alas

[saladdodger]

11d star billing
31d lap dissolve

[mallyh]

31d lap dissolve anagram poll advises

[Lie-in King]

11d Star billing - 'bill' (charge, in) 'staring'
31d Lap dissolve - anag 'poll advises'
46a Impalas - 'imp' (source of mischief) + 'alas'

http://www.collinsdictionary.com/dictionary/english/lap-dissolve

[saladdodger]

re 46a I comes come from the down clue The Teddy Bear's picnic

[hope3fully]

many thanks