Hi Bazotto, some parts of the puzzle were certainly a tad detailed, and I think quite a few people, here and elsewhere, have noted that finishing up the puzzle seemed to take almost as long as 'cracking' it. But that's enough of my opinion. Your questions :
1 Definition 'forests'. Yes, you are right, Peri is the fairy. Goes around 'in', tack on ES. You've got a clash there but I'm sure you'll sort it out.
12 Definition 'carriages'. Horses (as in classic breeding - were there really just 3 original racehorses ? I don't know because I dislike gambling, but the word also denotes desert dwellers).
17 American spelling of dialling. Clash in 2nd cell.
26 300=B, then 'women', but shuffling the 'w' along a tad. Clash in 3rd cell.
4 Met locally is 'seed', welcoming 'Dame of the British Empire' (and god bless all who sail in her). Clash in 2nd cell.
36 Extra word is 'Oars'. Definition is 'Wan' : substitute L for C in a synonym for walk.