Couple kick speaker as well (2,4)
I believe the answer is:
to boot
'as well' is the definition.
(I've seen this before)
'couple kick speaker' is the wordplay.
I cannot really see how this works, but
'kick' could be 'boot' (synonyms) and 'boot' is located in the answer.
The remaining letters 'to' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for to boot that I've seen before include "furthermore" , "on top of everything else" , "Moreover, in addition to (2,4)" , "Also, in addition - footwear?" , "Besides, in addition - think footwear" .)