Try small glass of spirits (4)
I believe the answer is:
shot
This might be a double definition.
'try small' is the first definition.
'shot' can be an answer for 'try' (both can mean an attempt). I am not certain of the 'small' bit.
'glass of spirits' is the second definition.
(I've seen this before)
Can you help me to learn more?
(Other definitions for shot that I've seen before include "Small drink of liquor" , "glass of spirits" , "Firing of a gun" , "Zoomed" , "Photo; lead pellets" .)