Michele 14/n although a possible solution does not fit the puzzle's total solution set (my answer key) as the "n" part is actually used in the 17/n pair solution which ManXman just solved
Michele 21/v although a possible solution does not fit the puzzle's total solution set (my answer key) as the "v" part is used with another "numbered" clue .. your 4-letter 'glen' for #21 is correct and
you have found the correct additional letter to add (the letter 'a') you just need to rearrange your 5 letter word to find the correct solution for the proper letter-clue answer. In reality, some of the 4-letter solutions can have different letters added to them allowing multiple solutions for two or more of the 5-letter, 'lettered' clues.
With all that said, the 5-letter solution set can only be created one way to properly spell out the quote from an old silver screen favorite
.. does this make sense?
ManXman .. 17/n is correct