I don’t think it was a simple clue. They always look easier in hindsight. But there were a lot of words, and working out how to group them was far from obvious.
The definition is at the start or end of most clues. Lovely red doesn’t mean anything, and standing has few synonyms. One standing a possibility, e.g. candidate. But lovely was the most likely. Clothes should immediately signal a possible containment indicator, putting red round the outside of the rest, and after that it was not too hard to see the removal of the t (split at the bottom leaving). Also both at the bottom and standing were vertical direction indicators, suggesting a likely down clue.
But you are already improving fast in my experience.