Last four. Easy 16d human breast (5) -o-o- 20a washbasin fitting (5,3) -i-e-/ tap Cryptic 16a (4) shock return of bananas (4) -t-n Is this stun as I can see shock but can"t get the connection with bananas?! 23a numbers in greek capital being inquisitive, (6) n-s-n- thanks for any help