Part in Normandy landings for Thomas? (5)
I believe the answer is:
dylan
'thomas?' is the definition.
(poet Dylan Thomas)
'part in normandy landings for' is the wordplay.
'part in' says the answer is hidden in the clue.
'DYLAN' is hidden in the letters of 'normandy landings for'.
(Other definitions for dylan that I've seen before include "Bob (musician) or Thomas (poet)" , "Popular musician" , "Roundabout rabbit" , "Bob (singer-songwriter) - Thomas (poet)" , "Great Welsh poet . . . . . Thomas" .)