Sentence:  Once the <WSD>cobwebs</WSD> of a lack-lustre first half were blown away, Spurs were irresistible and Arsenal were simply unable to cope with the power of Mousa Dembele in midfield and the creation and running of Christian Eriksen and Dele Alli - combined with the inevitable goalscoring prowess of Kane. 
Meaning of the word marked with <WSD> tags:  Something thin and unsubstantial, or flimsy and worthless; valueless remainder.