A life-and-death situation is a signal danger, but I don't see any wordplay for it.
Also to signal (with a light) can be to trip the light (4,3,5), but I don't see anything to do with that, either. (In particular, I don't see anything "fantastic" in the clue.)
Here's a little chemistry themed puzzle I made for a website a year or two back. You don't need to be a chemist or anything - I only took the basics in college
Hint 1 (Probably good to know)
@DanielS Galatasaray (Sports Club) (football team) = GALA (ball) + TA'S (teaching assistants, which I guess may be trainers for the main teachers) + A + RAY (shining light). I got lucky when I speculated that maybe "ball" meant a party of some sort and then immediately thought of "gala".
That's 36 letters before "cryptically", and the enumeration comes to 37. Just to save others from counting.
@DanielS "and now for something completely different" (Python expression) which is a cryptic clue for "and now for something"* = "denoting a N show form" cryptically. Not sure that I'd like "denoting a new show form cryptically" as a clue for it though (with "new" spelled out).
@msh210 Correct. I'm sorry the word "new" should not have appeared in the clue; looking at my notes it should have been "denoting a form shown cryptically." Note sure what happened in transcription
Can you find two numbers composed only of ones which give the same result by addition and multiplication? Of course 1 and 11 are very near, but they will not quite do, because added they make 12, and multiplied they make only 11.
To allow new users to solve this puzzle and earn reputation points...
For the record, TakingNotes's last ten C4 answers were, in order, UMBILICAL CORD, MMXXIII, DAY'S FINISH, PIE IN THE SKY, IS IT NEARLY OVER, READ BETWEEN THE LINES, PROJECT X, RED BLOOD CELLS, HER MAJESTY'S THEATRE, and RING THE BELLS BACKWARDS.
Of course, the first five of those were part of another sequence!