Like footballer Harry, tackling Chelsea’s forward sideways (7)
I believe the answer is:
askance
'sideways' is the definition.
(I've seen this in another clue)
'like footballer harry tackling chelsea's forward' is the wordplay.
I cannot quite understand how this works, but
'like' could be 'as' and 'as' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for askance that I've seen before include "Look thus to convey disapproval or distrust" , "In suspicious manner" , "(Look) at an angle, with mistrust" , "With doubt or mistrust" , "A look like this is sidelong or suspicious" .)