Low-scoring effort almost uncovered in London area? Definitely (5,4)
I believe the answer is:
snake eyes
'low-scoring effort' is the definition.
I can't tell whether this defines the answer.
'almost uncovered in london area? definitely' is the wordplay.
'almost' becomes 'snake' (I can't explain this - if you can you should believe this answer much more).
'uncovered' means to look at the middle letters.
'in london area?' becomes 'tottenham' (I've seen this before).
'definitely' becomes 'yes' ('definitely' can be used to say 'yes').
The central letter of 'tottenham' is 'e'.
'snake'+'e'+'yes'='SNAKE EYES'
Can you help me to learn more?
(Another definition for snake eyes that I've seen is " two in game".)