Crossword Genius

Feverish, so slept with pyjama bottoms only? (7)

Ross

I believe the answer is:

topless

I'm a little stuck... Click here to teach me more about this clue!

'feverish' is the definition.
Both the definition and answer are adjectives. Perhaps you can see an association between them that I can't see?

'so slept with pyjama bottoms only?' is the wordplay.
'so slept' anagrams to 'TOPLESS'.
But, I am not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for topless that I've seen before include "Without a shirt, vest or bra?" , "Half-naked" , "Wearing no clothing above the waist" , "Bare-breasted" , "Leaving the breasts uncovered" .)

I've seen this clue in The Telegraph.
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