Protracted contortion of leg and toe (9)
I believe the answer is:
elongated
'protracted contortion' is the definition.
'elongated' can be an answer for 'protracted' (thesaurus). I am unsure of the 'contortion' bit.
'of leg and toe' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'leg'+'and'+'toe'='legandtoe'
'legandtoe' anagrammed gives 'ELONGATED'.
Can you help me to learn more?
(Other definitions for elongated that I've seen before include "going further" , "Go al dente to be lengthened or prolonged" , "Put on stretcher" , "Stretched" , "Dangle toe (anag)" .)