I thought this was excellent - just the right level of difficulty for me to complete unassisted, with some lovely inventive clues. 28- 10 was an early broad smile, but with 13d, 16d, 17d, 22a, 12-18 I cannot choose my COD at the end.
Foi 5a (in my ignorance I only realise in realise that this is not the familiar version of the bird!), LOI 19d (not sure of the parsing of the last three letters)
4d reminds me of Norman's 'cricket test', which provoked a wonderful letter in the Guardian beginning 'Norman (an immigrant name of ever I heard one)...'!
I'm enjoying a quiet weekend with my Mum in Cornwall, which is why I can take this puzzle before late Sunday night! Best wishes to all, stay safe and be lucky.