Each clue has an extra letter is word play. Clues are in Alphabetic order.
Defeat following trouble for Trump? (4) Starts between E and I.
Nearly all senior guys, on retirement, are annoying (6) Starts N or O.
Vehicle controlled by computer from the back (4) Starts T?
Very sensitive thermionic device (5) Starts T, U, or V
I do not have cells to place three of the above in the grid.
Also extra letters give me 4, 4, 7, 4, (9 I cannot decipher), 5, 7.
F + US word for 'trouble' = (r)OIL [this answer isn't entered in the grid].
'smart' = 'controlled by computer' [reversed] TRAM(s)
V + 'sensitive' = AL(i)VE
There's a common 4 letter synonym that connects the 5 answers not entered in the grid - its plural describes the situation after the grid is filled -
'Five ?????? left'
Thanks ProfessorM.
I did find the word. Did not know it meant Valve.
I get the individual when I googled the phrase. 4, 5.
I found the 20 cells showing two works.
Thanks for your help.
I am finding Listener tough. Have solved most of the clues but enciphering seems difficult.
Yes, I found Listener pretty tricky too.
For the encoding I took a leap of faith that the most used single-letter in the initial grid (the 'i') would code to 'e'.
The title of the puzzle is also a clue - it gives you 2 of the double-letter ciphers.
The thing that slightly irked me about the puzzle was the three fairly obscure double-definition clues - I think that's a bit much when there's so much cold-solving to be done.