Nine preset switches? That's far from straightforward (10)
I believe the answer is:
serpentine
'far from straightforward' is the definition.
'nine preset switches?' is the wordplay.
'switches?' indicates an anagram (I've seen 'switching' mean this).
'nine'+'preset'='ninepreset'
'ninepreset' is an anagram of 'SERPENTINE'.
'that's' is the link.
(Other definitions for serpentine that I've seen before include "London lake" , "Devious" , "water created in London" , "Meandering" , "Mineral; like a snake" .)