Starting for all sides today in Split (5)
I believe the answer is:
leave
'today in split' is the definition.
'leave' can be an answer for 'split' (I've seen this in another clue). I am not sure about the 'today in' bit.
'starting for all sides' is the wordplay.
'starting' becomes 'ave' (I am not sure about this - if you are sure you should believe this answer much more).
'for' means one lot of letters go next to another (I've seen this in other clues).
'all' becomes 'love' (I've seen this before).
'sides' means to remove the middle letters (only the letters on the sides are used).
'love' with its middle removed is 'le'.
'ave' put after 'le' is 'LEAVE'.
Can you help me to learn more?
(Other definitions for leave that I've seen before include "Something taken by those withdrawing" , "Go - on holidays?" , "Insufficient foliage" , "Permission to take a vacation" , "taken by those on the way out" .)