enigmatic puzzle - Beginner's Cryptic Crossword

I've always been terrible at Cryptic Crosswords so I spent some time creating some clues of my own and have managed to fit them together to make a small Crossword of my own.
Once solved, any issues will be duly noted.

ACROSS
1. Cannabis consumes a realisation (6)
3. Cross-dress in Canadian province abbreviation (6)
4. Greek micro-illness uses telephone (7)

DOWN

2. Swedish band sings profanity (6)

Answer

I think the answers are:

1 across

POTATO
When pronounced, it sounds like "pot" (cannabis) "ate" (consumes) "oh" (realisation)

3 across

DRAGON
"Drag" (cross-dress) + "ON" (abbreviation for Ontario, Canada)

4 across

MUSICAL
Like 1 across, sounds like "mu" (Greek symbol used to mean miciro) "sic" (sounds like sick = illness) "call" (uses telephone)

2 down

ABACUS
"Aba" (Swedish band is ABBA) + "cus" (to swear/be profane is "to cuss")

Like so