Messenger seen during the maiden voyage (5)
I believe the answer is:
envoy
'messenger' is the definition.
(I've seen this in another clue)
'during the maiden voyage' is the wordplay.
'during' indicates the answer is hidden within the clue.
'ENVOY' is hidden within 'maiden voyage'.
'seen' acts as a link.
(Other definitions for envoy that I've seen before include "Emissary" , "Diplomatic messenger" , "One sent on a mission" , "Plenipotentiary" , "Legate" .)