Tries out rows (5)
I believe the answer is:
tiers
'rows' is the definition.
(tier is a kind of row)
'tries out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'tries' is an anagram of 'TIERS'.
(Other definitions for tiers that I've seen before include "I rest in layers" , "Binders" , "More than one bank" , "Layers of rites" , "Layers, levels" .)