Sailor slammed Bleriot’s substandard work? (9)
I believe the answer is:
potboiler
'substandard work?' is the definition.
(term for a creative work of low quality)
'sailor slammed bleriot's' is the wordplay.
'sailor' becomes 'PO' (petty officer).
'slammed' indicates an anagram.
'bleriot' anagrammed gives 'tboiler'.
'po'+'tboiler'='POTBOILER'
(Other definitions for potboiler that I've seen before include "Book, film, etc, produced just for the money" , "likely to be steamy?" , "Moneymaking work" , "Quickly written novel of little merit" , "Poor novel" .)