Hot dish in bed -- I get pea rolling round (7,3)
I believe the answer is:
cottage pie
'hot dish' is the definition.
(cottage pie is a type of dish)
'bed i get pea rolling round' is the wordplay.
'bed' becomes 'cot' (cot is a kind of bed).
'rolling' indicates an anagram.
'round' indicates putting letters inside.
'get'+'pea'='getpea'
'getpea' with letters rearranged gives 'tagepe'.
'i' inserted into 'tagepe' is 'tagepie'.
'cot'+'tagepie'='COTTAGE PIE'
'in' acts as a link.
(Other definitions for cottage pie that I've seen before include "Dish of minced meat topped with mashed potato" , "Minced beef topped with mashed potato" , "Potato-topped dish" , "homely dish" , "Mince/mashed potato dish" .)