Material used in hives to make honeycombs (7)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
beeswax
(Other definitions for beeswax that I've seen before include "Honeycomb material" , "It's used to make honeycombs and candles" , "Hive-made polish" , "Polish ingredient" , "Output of buzzers" .)