One caught friend under car flooring without thinking (13)
I believe the answer is:
automatically
'without thinking' is the definition.
(without needing to think)
'one caught friend under car flooring' is the wordplay.
I cannot quite see how this works, but
'one' could be 'o' (I've seen this in other clues) and 'o' is present in the answer.
'caught' could be 'c' (cricket abbreviation) and 'c' is present in the answer.
'friend' could be 'ally' (an ally is a friend or supporter) and 'ally' is present in the answer.
'car' could be 't' and 't' is found in the answer.
'flooring' could be 'mat' (floor covering) and 'mat' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?