Pass the French and Maori to set in order (7)
I believe the answer is:
collate
'order' is the definition.
(I know that collate has the is a more specific form of the action order)
'pass the french and maori to set in' is the wordplay.
'pass' becomes 'col' (col is a term for a mountain pass).
'the french' becomes 'le' ('the' in French).
'and' means one lot of letters go next to another.
'maori' becomes 'at' (I can't explain this - if you can you should give a lot more credence to this answer).
'to set in' is an insertion indicator.
'col'+'le'='colle'
'colle' enclosing 'at' is 'COLLATE'.
Can you help me to learn more?
(Other definitions for collate that I've seen before include "Gather and put in order" , "Compare and analyse (two or more sources)" , "Put pages in order" , "Assemble in sequence" , "sort out" .)