1. I thought 'pallid' for this but couldn't parse it apart from getting A51 = ALI stuck in my head
2. ???
3. Crispin - charade of Invigorating (crisp) + fashionable (in). Def - cobbler (patron saint)
4. Dasheki - subtractive anagram - to play (anagram indicator) 'hide and seek' (fodder) minus (no) 'need'. Def - shirt worn in Africa and the US
5. ???
Jolan
Thanks for the brain stretching exercise, with your usual excellent clues. Looking forward to the your answers and parsing - or aristophanes' :)