Prayer from crew on capsized craft (6)
I believe the answer is:
mantra
'prayer' is the definition.
(mantra can mean a hymn or prayer)
'crew on capsized craft' is the wordplay.
'crew' becomes 'man' (I've seen this before).
'on' is a charade indicator (letters next to each other).
'capsized' is a reversal indicator.
'craft' becomes 'art' (both can mean cunning or trickery).
'art' written backwards gives 'tra'.
'man'+'tra'='MANTRA'
'from' acts as a link.
(Other definitions for mantra that I've seen before include "Chanted phrase" , "Powerful words" , "repeating phrase" , "Buddhist chant" , "words of comfort repeatedly" .)