Start to draft a report about water from the Eye (8)
I believe the answer is:
teardrop
'water from the eye' is the definition.
'start to draft a report about' is the wordplay.
'start to' indicates taking the first letters.
'about' indicates an anagram.
The initial letter of 'draft' is 'd'.
'd'+'a'+'report'='dareport'
'dareport' is an anagram of 'TEARDROP'.
(Other definitions for teardrop that I've seen before include "Globule of moisture indicating distress" , "Mournful globule from predator" , "Product of crying" , "pearl" , "Parroted (anag.)" .)