Finished, using a few nudges from the forum and a couple og goes with CrosswordSolver. With 3 to go, took Roget off the shelf for synonyms of "filter", thus solving 1d, 1a, and LOI 3d.
24a - 5 letter slang or catch-all term for a "car" minus the T/'no time' and that is replaced by a 3 letter "dipstick" another slang term for an idiot - definition is "check" as a verb