Perfectly formed proposal put forward Liberal (5)
I believe the answer is:
ideal
'perfectly formed' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives can occasionally define each other.
'proposal put forward liberal' is the wordplay.
'proposal' becomes 'idea' (idea can mean a proposal or suggestion).
'put' is a charade indicator (letters next to each other).
'forward liberal' becomes 'l' (abbreviation. I am not sure about the 'forward' bit.).
'idea'+'l'='IDEAL'
Can you help me to learn more?
(Other definitions for ideal that I've seen before include "unlikely to be bettered?" , "An - - Husband (Wilde)" , "Perfect; visionary" , "Something that one hopes to attain" , "Model of excellance" .)