English grasped by kids completely, as they say (5)
I believe the answer is:
totes
'completely as they say' is the definition.
('totes' is short for 'totally')
'english grasped by kids' is the wordplay.
'english' becomes 'e' (abbreviation).
'grasped by' indicates putting letters inside (I've seen this in other clues).
'kids' becomes 'tots' (tot is a kind of kid).
'e' inserted within 'tots' is 'TOTES'.
(Other definitions for totes that I've seen before include "Carries the betting system" , "Carries, drags" , "Bears" , "Carries, lugs" , "Carries or shoulders" .)