Mephisto

[foxspur]

20ac Family of flutterers getting prize delivered, one from Perth (8)
I have ?IE?IDA?
22dn Wonder about reduced check for such as old TVs (6) I have ?WASTE
The S comes from 30ac Eisenhower, for one, ignored the likes of career sickness, it's said (7)
(Which I have as ELFSHOT. ELFSHOT is a sickness but can't parse it)
All help appreciated

[JMR27]

22d E waste (awe reversed + ste(m)
30a elfshot - anagram of 'the l(ike)s of'

[JMR27]

20a pieridae
prize - pie
delivered - rid
ae - scots for one

[foxspur]

Thanks, JMR, for explaining thel(Ike)sof. I was fixated on Dwight! Also pieridae. I looked through the whole dictionary of ?IE, but attention to detail has always been one of my weaknesses!!