Can any kind person help me please!
20 across: One is supporting huge electronic advantage (7)
_ _ O _ O _ E
I'm assuming it's isotope but don't understand why.
20 down: One is in business with 3 - sign of return? (7) I_L_R_ _
and finally............
28 across: One is flattering client about Newsround? (5-5) _R_ _ _ N_S_R
any help gratefully appreciated