It gets into hot water (5)
I believe the answer is:
pasta
'it gets into hot water' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pasta that I've seen before include "Penne, rigatoni etc" , "Eg, lasagne" , "Dish of dough made with durum wheat" , "Dried flour paste for making Italian food" , "Fusilli, conchiglie and penne" .)