Hi Bluetit . Try this for help
38. Picture means film.Think of a word for haughty people and take out the R (without Roger). Then look up that film for Duchess connection.
46. This is a statue in Edinburgh ( capital) of an animal who kept a vigil by his masters grave.
91. Think of a lifting device +a+ sign for a pound ,
It's all to do with how you read the clue.
Hope this helps