Places to go when laundries run out? (6)
I believe the answer is:
ladies
'places to go' is the definition.
(ladies toilets, places to use the toilet or 'go')
'laundries run out?' is the wordplay.
'out?' suggests deleting specific letters.
'laundries' with 'run' taken away is 'LADIES'.
'when' acts as a link.
(Other definitions for ladies that I've seen before include "Women of rank in the British peerage" , "Public facility" , "...... and gentlemen" , "Well-mannered women" , "Wives of knights" .)