Rudiments (6)
'rudiments' is the definition.
(synonyms)
This is all the clue.
(Other definitions for basics that I've seen before include "Essential principles" , "Rudiments" , "Fundamentals, starting-points" .)
'rudiments' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for abcs that I've seen before include "Know these to be well versed - alphabetically?" , "12 [THINGS EASY]" , "guides ..." , "Know these letters to be well informed" .)