Absolutely agree AnthonyStMichel. From the answer to the first clue - motmot - I suspected that this was going be 'one of those' and my fears were sadly realised. Too much time was spent googling words to see if they existed for this to be fun, perhaps the worst of the bunch being 'Uppsala', though I haven't finished so there might be worse to come.
At least I knew word in 41a but I can't parse it:
Hard-hearted behaviour not encountered by Naomi? (12)
A: ruthlessness (well, it fits).