Biblical figure starts to pray at undue length (4)
I believe the answer is:
paul
'biblical figure' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'starts to pray at undue length' is the wordplay.
'starts to' indicates taking the first letters.
The initial letters of 'pray at undue length' is 'PAUL'.
Can you help me to learn more?
(Other definitions for paul that I've seen before include "Epistle-writing saint" , "See 10" , "Beatle - singer with Peter and Mary" , "Some rob Peter to pay .." , "The first great Christian missionary" .)