Where insular Scots can move fast at half fare? (6)
I believe the answer is:
staffa
'where insular scots can move' is the definition.
The definition suggests a singular noun which matches the answer.
'fast at half fare?' is the wordplay.
I cannot really see how this works, but
an anagram of 'fast' is 'staf' which is within the answer.
'fare?' could be 'a' (A is an example) and 'a' is located in the answer.
A single letter 'f' remains 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 staffa that I've seen before include "northern isle" , "Fingal's cave isle" , "small uninhabited island" , "Island west of Mull" , "Scottish island" .)