I would advise paying particular attention to the last part of the section headed 'Tools of the IQ trade', 'Chambers, the dictionary of choice for most barred puzzles, is particularly recommended today'.
You two are romping away today. Could you please offer me a hint to 1a. Rub ones bum not initially easy to get at (6). I feel it must be an anagram but can't find a word....
rotate looks good for definition of spin and rot fits root , take o/nothing away...
3d Take nothing away from Root, getting stuck into pace and spin (6) ... "and" is in italics