Well, I'm not sure if this qualifies, but there is Anonpip's
The Boy In Black , where Clark starts doing rescues as a teenager.
The always-reliable Dandello has
Angel Found , which is about Clark being found (duh). Nan Smith wrote
Before The Beginnning which also talks about M&J and the baby they found.
Dandello also wrote
The Smallville Connection , which asks, what if an agency devoted to policing aliens on Earth knew about Clark in his childhood?
More to the "training" point, Laura S. wrote
It\'s Raining On Prom Night where we learn how Clark learned how to cut his hair.
Nan Smith has
Second Choices , which is really an alt-beginning story, where a teenage Lois comes to live in Smallville along with her alcoholic mother and her sister; Lois meets her fellow high school student Clark Kent.
Carol M. explores the M&J romance in
He Didn\'t Have To Be .
I really enjoyed Shayne Terry's
Time And Again , where an adult Lois goes back in time and leaps into the body of her teenage self - she's got to meet young Clark (pre all his powers) and change the future that was.
Mary Potts, aka Queen of the Capes, has two great short stories, not about Clark, but about his descendant. Don't miss
Dear Ojiisama and
A Boy In Kimono .
Terry Leatherwood tells us what might have happened if young Clark had grown up with Lana and had accepted her marriage proposal in
A Road Taken . It's the first of a trilogy.
Lana also appears in Carol Malo's
Don\'t Tell , where a young Clark wants to tell Lana his secret.
Too good to miss: Chris Carr's
A Gift From Shetland , a story about growing up and growing old.
Sorry - after looking at this list, I realize that there aren't a lot of recommendations that actually fit your criteria. Many of these are alt-beginning, or alt-world, or older-LnC fics. I just wanted to recommend some more of my favorite fanfics.
I hope other FoLCs can come up with some more recommendations.
The idea keeps bouncing around in my head and I may have to write it myself...
What a great idea!
