Taxi holds the French associate of Joshua (5)
I believe the answer is:
'associate of joshua' is the definition.
I know nothing about this answer so I can't judge whether this works.
'taxi holds the french' is the wordplay.
'taxi' becomes 'cab' (synonyms).
'holds' indicates putting letters inside.
'the french' becomes 'le' ('the' in French).
'cab' enclosing 'le' is 'CALEB'.
Can you help me to learn more?
(Another definition for caleb that I've seen is " Chap".)