Finding this difficult.
Any help with the following appreciated.
There is an extra letter to be removed or a string of letters for vehicles to be added somewhere before solving:
28. Sentimentality with nation keeping appointment in shade (12, 2 words)
17. Deviser of crosswords supports bar in Further Language Unit (8)
5. Could then have one got up to search? (8, 2 words)
36. Rebels get chatterers taking fright (8)
As an example of adding vehicle:
27. The city of Le Pen? (5)
becomes The city of ARTICle Pen? Don't know the answer.
28 Sentimentality with carnation keeping appointment in shade. Mushroom Pink, a shade. Mush = sentimentality, carnation = a pink, name of a kind of flower +room = appointment.