Washed tights beginning to dry? (5)
I believe the answer is:
hosed
'washed' is the definition.
(I've seen this before)
'tights beginning to dry?' is the wordplay.
'tights' becomes 'hose' (synonyms).
'beginning to' indicates taking the first letters.
The initial letter of 'dry' is 'd'.
'hose'+'d'='HOSED'
(Other definitions for hosed that I've seen before include "Watered with a flexible pipe" , "swilled down with water" , "wearing tights?" , "washed" .)