Wind like this carrying enormous bird round (7)
I believe the answer is:
sirocco
'wind' is the definition.
(I've seen this before)
'like this carrying enormous bird round' is the wordplay.
'like' becomes 'sic' (I've seen this before).
'this carrying' is an insertion indicator.
'enormous bird' becomes 'roc' (mythical giant bird).
'round' becomes 'o' (round can mean a round object).
'sic' placed around 'roc' is 'sirocc'.
'sirocc'+'o'='SIROCCO'
(Other definitions for sirocco that I've seen before include "Hot Saharan wind blowing into the Mediterranean" , "Hot, dry wind from northern Africa" , "Hot wind reaching Italy from Africa" , "Wind from the desert" , "Hot dusty wind from north Africa to Europe" .)