Hello Pastille,
My explanation for 1A) is
Get stuck in to = the definition of the whole clue. RE: Chambers, Grapple boldly with a danger or difficulty
fried = (anagram indicator) of steak
Catching = putting inside
Its creator = creator of the steak = second & third word
close to = fourth word
sexual arousal = fifth & sixth words minus the last letter
the first word and the last letter of the answer is picked up from the anagram of steak
Hope that helps
Les40