I took 'salad' to indicate anagrammatical messing about (it was used as a 'key' word back in the day - salad implying chopping and changing).
That's why I used the word salad - to confuse! Soup can be used in a similar way.
Its really easy now you know this. But its possible my clue is not a good one - I'm never quite sure of some anagrammatical rules.