Become depleted, just a single behind (3,5)
I believe the answer is:
run short
'become depleted just a' is the definition.
I can't judge whether this defines the answer.
'single behind' is the wordplay.
'single' becomes 'run' (cricket).
'behind' becomes 'short' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'run'+'short'='RUN SHORT'
Can you help me to learn more?
(Other definitions for run short that I've seen before include "become exhausted" , "Become lacking" , "Come to be lacking" .)