Vegetable I'd pulled up with spots on the outside (6)
I believe the answer is:
radish
'vegetable' is the definition.
(radish is a kind of vegetable)
'i'd pulled up with spots on the outside' is the wordplay.
'pulled up' says the letters should be written backwards.
'with spots' becomes 'rash' (I've seen this before. I am not sure about the 'with' bit.).
'on the outside' is an insertion indicator.
'id' in reverse letter order is 'di'.
'di' put into 'rash' is 'RADISH'.
Can you help me to learn more?
(Other definitions for radish that I've seen before include "Root vegetable used in salads" , "Small red salad vegetable" , "Red cold salad ingredient" , "Daikon or mooli" , "Hard vegetable" .)