Confusion about web and about conifer (4,4)
I believe the answer is:
pine tree
'conifer' is the definition.
(pine tree is a kind of conifer)
'confusion about web and about' is the wordplay.
'confusion' becomes 'pie' (I've seen this in other clues).
'about' means one lot of letters goes inside another.
'web' becomes 'net' (synonyms).
'and' says to put letters next to each other.
'about' becomes 're' ('re' means regarding or about).
'net'+'re'='netre'
'pie' enclosing 'netre' is 'PINE-TREE'.
(Another definition for pine tree that I've seen is " Evergreen conifer".)