silverstar hi there this is probably a question for cindy but having trimmed many birds claws of many different species over a good number of years I'd onestly say that yer bird will most probably be fine,
The straightened toe in such circumstances I can't really answer as I've never experienced this before but I'm just wandering that are you definitely sure this has happened after the claw was trimmed,
The bird may of had a bit of a straight toe before you caught the bird up and not necessarily noticed it
I've at times put a splint on a birds leg and also tapped up the hind due claw loosely to the shank of a birds leg when they are young because some birds slip the hind due claw and this basically folds underneath the birds foot,
If the straightened toe of yer canary is the front toe unfortunately through experience there won't be an awful lot you can do with it,
I doubt it very much that it will affect the bird in any such way.
Incidentally if you ever cut the birds nails and it starts to bleed again and you've got no powder IE if you run out etc,
The easiest way to stop it from bleeding is to light a match quickly blow the match out and immediately apply the head of the hot match to the cut toe, this will quarterise it, you can also do the same with the end of a cigarette but needs to literally dab it for a split second and no longer, yes the bird will possibly flinch but is a certain way of stopping the bleed,
This method is a very old school method but does work as a last resort