National flag originally hoisted by crew (8)
I believe the answer is:
irishman
'national' is the definition.
(someone from Ireland)
'flag originally hoisted by crew' is the wordplay.
'flag' becomes 'iris' (type of iris flower).
'originally' says to take the initial letters.
'by' means one lot of letters go next to another.
'crew' becomes 'man' (both can mean to staff or operate something).
The first letter of 'hoisted' is 'h'.
'iris'+'h'+'man'='IRISHMAN'
(Other definitions for irishman that I've seen before include "Eg, Dublin male" , "One from Eire" , "Casement possibly" , "European" , "Dubliner, say" .)