Sit and read awkwardly with legs apart (7)
I believe the answer is:
astride
'with legs apart' is the definition.
(as in sitting astride a horse)
'sit and read awkwardly' is the wordplay.
'and' says to put letters next to each other.
'awkwardly' is an anagram indicator.
'sit' after 'read' is 'readsit'.
'readsit' is an anagram of 'ASTRIDE'.
(Other definitions for astride that I've seen before include "With legs stretched apart - tirades (anag)" , "On top of" , "Passing across" , "It dares to be with legs wider apart" , "Not side saddle" .)