Tangled mesh, very small person's embroidery (9)
I believe the answer is:
hemstitch
'embroidery' is the definition.
(hemstitch is a kind of embroidery)
'tangled mesh very small person's' is the wordplay.
'tangled' is an anagram indicator.
'very small person' becomes 'titch' (I've seen this before).
'mesh' is an anagram of 'hems'.
'hems'+'titch'='HEMSTITCH'
(Other definitions for hemstitch that I've seen before include "border" , "cough and pain" , "needlework" .)