Seems quite hard this week, or I am being silly, probably the latter.
85a(11 Letters) Benificial to the environment. E??FRI?N??Y.
70a(10) letters. Contrived,constructed. E????EMR??D
114a(7.6) letters.Change in the pitch of sound. ??p??? ?f?e?t
Thanks to who can help, no doubt will be back.