So Victor Edwards let the English leaders be gracefully slim? (6)
I believe the answer is:
svelte
'gracefully slim?' is the definition.
(I've seen this before)
'so victor edwards let the english leaders' is the wordplay.
'leaders' says to take the initial letters.
The first letters of 'so victor edwards let the english' is 'SVELTE'.
'be' acts as a link.
(Other definitions for svelte that I've seen before include "Gracefully slender" , "Elegant and of slender build" , "free" , "Slim and attractive" , "Of delicate or slender build" .)