The crossword solution for the term 'as (to the extent that)' is 'insofar' (7 letters). Insofar is an adverb that is used to indicate the degree or extent to which something is true or possible. It is often used to express a limitation or qualification of a statement. For example, one might say 'I will help you insofar as I am able, ' meaning that they will help to the extent that they are able.