Contacted loony left (4)
I believe the answer is:
felt
'contacted' is the definition.
Although both the answer and definition are past participle verbs, I cannot see how they can define each other.
'loony left' is the wordplay.
'loony' is an anagram indicator.
'left' anagrammed gives 'FELT'.
Can you help me to learn more?
(Other definitions for felt that I've seen before include "examined by touch" , "Sensed - beret material" , "Laid hands" , "Experienced, say, emotion" , "Cloth of pressed wool and fur" .)