Mushy peas, barely cooked, on a fork? (7)
I believe the answer is:
speared
'mushy' is the definition.
The answer and definition are not the same part of speech. However, adjectives and past participle verbs sometimes define each other.
'peas barely cooked on a fork?' is the wordplay.
I cannot really see how this works, but
an anagram of 'peas' is 'spea' which is present in the answer.
'on' could be 're' (regarding) and 're' is present in the answer.
A single letter 'd' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for speared that I've seen is " hit by javelin maybe!".)