The unclued lights, five of which are correctly numbered, are of a kind. Ignore one accent. Chambers does not include the solution at 29D.
 

Across

 
01    Have nothing to do with letter read out to John — needs amending (13, five words)
09   European dormouse cutting 42 thematically (4)
11    Countrywomen who work in resorts (10)
12    Regularly assaulted coming to auction (4)
14    Passes degrees (6)
16    Maybe the phoenix by one or two toadstools (5)
17    Duran Duran’s lead singer backed inventor (5)
21    Relatively speaking, very much like the dew (7)
23    Bridle at port’s loveless sweetheart (7)
24   ...