Being in this dirty enclosure, reportedly resulted in eye infection (4)
I believe the answer is:
stye
'eye infection' is the definition.
(synonyms)
'being in this dirty enclosure reportedly resulted' is the wordplay.
I cannot quite understand how this works, but
'enclosure' could be 'sty' (sty is a kind of enclosure) and 'sty' is present in the answer.
'reportedly' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Other definitions for stye that I've seen before include "Eye complaint" , "makes viewer sore" , "Red eye" , "Eye sore" , "irritation to the viewer" .)