"Recommend" has a number of synonyms, including advocate, endorse, commend, suggest, propose, nominate, plug, advise, counsel, urge, exhort, enjoin, prescribe, back and support. Knowing how many letters the entry is and whether you have any letters already would help us narrow it down.
The clue is related to the crossword title
To get crossword puzzle answers you look at the numbered clues and find out what they mean and what matchs the clue then you put your answer to the clue in its numbered space
jib
In most crosswords, a gp in lowercase in a clue means group.
"clue echo" for crossword aficianados, wherein one clue is repeated later in the puzzle.
The crossword clue for the Welsh rabbit is the hare.
The Clue in the Crossword Cipher was created in 1967.
hug, cuddle
The ISBN of The Clue in the Crossword Cipher is 0-448-09544-0.
Pref means a prefix, so "tetrad prefix" might be "quad."
Had a hard time figuring this out. It means spew! It was a crossword puzzle clue.
It usually means an abbreviation and indicates that the answer wants to be abbreviated as well.