Refreshment break -- work even less after little energy (9)
I believe the answer is:
elevenses
'refreshment' is the definition.
(I've seen this before)
'work even less after little energy' is the wordplay.
'work' indicates anagramming the letters.
'after' is a charade indicator (letters next to each other).
'little' says to take the initial letters.
The first letter of 'energy' is 'e'.
'even'+'less'='evenless'
'evenless' anagrammed gives 'levenses'.
'levenses' put after 'e' is 'ELEVENSES'.
'break' acts as a link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for elevenses that I've seen before include "energy getting second break" , "Mid-morning refreshment" , "Soccer teams" , "tenses found immediately before this?" , "Early drink" .)