This morning's clue:
Looking for the name of a warbird.
1. Designed and built early in a war. It was an improved version of an earlier airplane from the same manufacturer.
2. Its performance in one role was acceptable, but that role was not one that its country had much need for at the time, so it was given other roles, for which it was ill-suited.
3. It was flown by three services of the one country that used it.
4. It was a fighter. It was considered hard to fly, although one of its country's top-scoring aces got some of his kills while flying it.