Practise on vehicle used for final journey (8)
I believe the answer is:
rehearse
'practise' is the definition.
(I know that practise can be written as rehearse)
'on vehicle used for final journey' is the wordplay.
I cannot really see how this works, but
'on' could be 're' ('on' can be mean 'with reference to') and 're' is found in the answer.
'vehicle' could be 'hearse' (vehicle for a coffin) and 'hearse' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for rehearse that I've seen before include "Practise (one's lines)" , "Practise parts" , "Practise before a public performance" , "Practise before performing in public" , "Train" .)