Getting stand with legs well spaced, led off with violin (8)
I believe the answer is:
straddle
'getting stand with legs well spaced' is the definition.
I can't judge whether this definition defines the answer.
'led off with violin' is the wordplay.
'off' indicates an anagram.
'with' is an insertion indicator.
'violin' becomes 'strad' (Stradivari abbreviation).
'led' is an anagram of 'dle'.
'dle' enclosing 'strad' is 'STRADDLE'.
(Other definitions for straddle that I've seen before include "To have a foot in both camps" , "Step across" , "Go across" , "Led darts (anag)" , "Extend over a certain area" .)