Some help with the basic answer to the following, please:
16 a Tailless rodent, active at hollow( 4 ): ?E??
22a Mild stimulant for Herbie, we're told(5): B????
3d River that's questionable, we hear(3): ?C?
5d Royal daughter's vile anger(5) ?T???
And now, some help,too, with the enigmatic play of numbers...How should one proceed with 12A which I worked out to be CERTAIN (anagram of REACTIN')?
Many thanks in advance!