Hotel's crap iron's rubbish for folds … (8,7)

I believe the answer is:

hospital corners

'folds' is the definition.
(system of folds used to make a bed in hospitals)

'hotel's crap iron's rubbish' is the wordplay.
'rubbish' is an anagram indicator (a poor quality or rubbish spelling of the letters).
'hotels'+'crap'+'irons'='hotelscrapirons'
'hotelscrapirons' with letters rearranged gives 'HOSPITAL CORNERS'.

'for' acts as a link.

I've seen this clue in The Guardian.

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