Band of Brothers maybe back from naval air establishment (6)
I believe the answer is:
serial
'band of brothers maybe' is the definition.
(Band of Brothers was a TV serial)
'back from naval air establishment' is the wordplay.
'back' says the letters should be written backwards.
'from' indicates the answer is hidden within the clue.
'laires' can be found hidden inside 'naval air establishment'.
'laires' written backwards gives 'SERIAL'.
(Other definitions for serial that I've seen before include "Publication in instalments" , "Of continuous nature - maybe a killer" , "Story made up of consecutive parts" , "Story published in parts" , "following a characteristic pattern" .)