Deal the wrong way with jerk following band? (7)
I believe the answer is:
elastic
'band?' is the definition.
(I know that elastic is a type of band)
'deal the wrong way with jerk' is the wordplay.
'deal' becomes 'sale' (I've seen this in another clue).
'the wrong way' shows that the letters should be reversed in order.
'with' is a charade indicator (letters next to each other).
'jerk' becomes 'tic' (jerking movement by the body).
'sale' reversed gives 'elas'.
'elas'+'tic'='ELASTIC'
'following' acts as a link.
(Other definitions for elastic that I've seen before include "'Flexible, springy (7)'" , "Resilient" , "capable of adapting to change?" , "Springing back to shape after stretching" , "Kind of band" .)