Pull leg about being found in bed that's untidy (10)
I believe the answer is:
bedraggled
'untidy' is the definition.
(thesaurus)
'pull leg about being found in bed' is the wordplay.
'pull' becomes 'drag' (drag is a kind of pull**).
'about' is an anagram indicator.
'being found in' is an insertion indicator.
'leg' anagrammed gives 'gle'.
'drag'+'gle'='draggle'
'draggle' going within 'bed' is 'BEDRAGGLED'.
'that's' acts as a link.
(Other definitions for bedraggled that I've seen before include "Wet and dirty" , "Unkempt" , "Dishevelled" , "Very untidy" , "muddy and dripping" .)