Cap on splitting money in speculative venture (5)
I believe the answer is:
beret
'cap' is the definition.
(I know that beret is a type of cap)
'on splitting money in speculative venture' is the wordplay.
I cannot quite understand how this works, but
'on' could be 're' ('on' can be mean 'with reference to') and 're' is located in the answer.
'venture' could be 'bet' (bet is a kind of venture) and 'bet' is located in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for beret that I've seen before include "cap in France?" , "Brimless French headgear" , "Soldier's cap" , "Military cap" , "item of headwear" .)