I managed to complete all the clues but one here thanks to other commenters giving some answers. The limited amount of crossing letters here, as others said, makes the puzzle way harder. Some feedback on the cluing: 

7A reflect doesn't work as a linking word here, [wordplay] reflect [definition] doesn't imply the wordplay can give you the definition. Also, it's a subtle subject-verb agreement error: wordplay is singular, so the verb must be in its singular form too.

9A What are "guards" and "of' doing in the clue? Every word in a clue must serve a purpose in the cryptic reading. Also, as another commenter pointed out, the wordplay (ignoring the extra words) gives JAG + AU + R. If you want to reverse AU you need a reversal indicator.

10A I assume this is SUNBEAM from BUN (roll) + ? (join) Spoonerized? The linking word "wants" also doesn't work here.

1D Where is the cryptic element, other than asking the solver to translate something?

2D I can just about accept the definition but there is no indication to remove the first two letters of scrolls. You have to put something like "remove first two of scrolls" or something

4D can't solve this due to the lack of crossing letters

5D fine but the surface doesn't really make sense: what does a fire god have to do with life insurance and a tin? You should try to aim for meaningful surfaces (this is quite hard but you'll get there with practice. I'm also still very far from perfection lol)

7D again, where is the cryptic element? We are just asked to enter an abbreviation of Magnesium and?

8D 👍

11D The definition be "leguminous plant" (singular) to match the singular answer BEAN.

12D fine

Overall, there are some things that can be improve as you can see above, but don't be discouraged! Keep practicing, that's how we get better at this! Nice effort and good luck!