Though small, plenty just to try it out (6)
I believe the answer is:
sample
'to try it out' is the definition.
I can't judge whether this definition defines the answer.
'though small plenty' is the wordplay.
'though small' becomes 's' (abbreviation - e.g. clothes size. I am not sure about the 'though' bit.).
'plenty' becomes 'ample' (ample means enough or plenty).
's'+'ample'='SAMPLE'
'just' is the link.
Can you help me to learn more?
(Other definitions for sample that I've seen before include "Taste(r)" , "Model" , "Take" , "Cross section" , "instance" .)