Load of trendy guys in street (8)
I believe the answer is:
shipment
'load' is the definition.
('shipment' can be a synonym of 'load')
'trendy guys in street' is the wordplay.
'trendy' becomes 'hip' (I've seen this in other clues).
'guys' becomes 'men'.
'in' is an insertion indicator.
'street' becomes 'st'.
'hip'+'men'='hipmen'
'hipmen' put within 'st' is 'SHIPMENT'.
'of' acts as a link.
(Other definitions for shipment that I've seen before include "22 [CARGO]" , "A consignment as for marine transport" , "load" , "Consignment of goods" .)