Ghastly pal lurches from a tomb (10)
I believe the answer is:
sepulchral
'from a tomb' is the definition.
I can't judge whether this definition defines the answer.
'ghastly pal lurches' is the wordplay.
'ghastly' indicates anagramming the letters (a ghastly spelling of the words).
'pal'+'lurches'='pallurches'
'pallurches' with letters rearranged gives 'SEPULCHRAL'.
Can you help me to learn more?
(Other definitions for sepulchral that I've seen before include "offering gloomy tones" , "from the grave" .)