Of little value (7)
'of little value' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for trivial that I've seen before include "Rival it, being unimportant" , "Trifling" , "Unimportant, minor" , "Piddling" , "Worthless" .)
(Another definition for pennyante that I've seen is " type of poker".)