Drink consumed by Michael Attenborough (5)
I believe the answer is:
latte
'drink' is the definition.
(type of coffee drink)
'consumed by michael attenborough' is the wordplay.
'consumed by' indicates a hidden word (inserted letters get consumed).
'LATTE' is hidden in the letters of 'michael attenborough'.
(Other definitions for latte that I've seen before include "frothy cup" , "Coffee with a topping of frothed steamed milk" , "Coffee served with hot milk" , "Frothy milky coffee" , "Espresso with frothy milk" .)