The first man returned after a right fleet of history (6)
I believe the answer is:
armada
'fleet of history' is the definition.
'armada' can be an answer for 'fleet' (armada is a kind of fleet). I'm not certain of the 'of history' bit.
'the first man returned after a right' is the wordplay.
'the first man' becomes 'adam' (first man in the Bible).
'returned' is a reversal indicator.
'after' is a charade indicator (letters next to each other).
'a right' becomes 'ar' (I've seen this in other clues).
'adam' in reverse letter order is 'mada'.
'mada' put after 'ar' is 'ARMADA'.
Can you help me to learn more?
(Other definitions for armada that I've seen before include "Spanish war fleet" , "A great fleet - Spain had one" , "Naval fighting force" , "Navy" , "Fleet Drake defeated" .)