Inclination in bed to eat starters - a vegetable (9)
I believe the answer is:
courgette
'a vegetable' is the definition.
(I know that courgette is a type of vegetable)
'inclination in bed to eat starters' is the wordplay.
'inclination' becomes 'urge' (I've seen this in another clue).
'in' indicates putting letters inside.
'bed' becomes 'cot' (cot is a type of bed).
'starters' indicates taking the first letters (the letters which start the words).
The first letters of 'to eat' is 'te'.
'urge' going inside 'cot' is 'courget'.
'courget'+'te'='COURGETTE'
(Other definitions for courgette that I've seen before include "Zuccini" , "One of the vegetables" , "Small marrow" , "Zucchini is its American equivalent" , "Type of vegetable marrow" .)