Tolerate Dutch whiskers (5)
I believe the answer is:
beard
'whiskers' is the definition.
(synonyms)
'tolerate dutch' is the wordplay.
'tolerate' becomes 'bear' (synonyms).
'dutch' becomes 'd' (common abbreviation).
'bear'+'d'='BEARD'
(Other definitions for beard that I've seen before include "In good health; very" , "Facial hair" , "SECOND PART OF 14" , "hair extension" , "Facial feature" .)