Singular Côte d’Ivoire architectural style – O! is lost; quite a blow (8)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

A charade of S (‘singular’) plus CI (‘Côte d’Ivoire’, IVR) plus ROC[o]CO (‘architectural style’) minus an O (‘O! is lost’), for a strong hot Mediterranean wind, also written sirocco.