Clear international HQ building in Manhattan? (7)
I believe the answer is:
unblock
'clear' is the definition.
(I've seen this in another clue)
'international hq building in manhattan?' is the wordplay.
I cannot really understand how this works, but
'international' could be 'un' (I've seen this in other clues) and 'un' is located in the answer.
The remaining letters 'block' 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 unblock that I've seen before include "Clear (drains, etc)" , "Remove an obstruction from" .)