Good to hear from you both, caravaggio and Mondrian.
1d (slang for tobacco) think of the 2-letter symbol for tin
4d another word for hood. Last 3 letters is a bird.
5d anagram of the first two words + two-letter symbol for iron
11a is a French Palace
12a another word for "trial".
anagram of "boat oar in"+ 3-letter word for "be nosey"
Hope this is not too confusing.
Best wishes
J